aurora

northern lights

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aurora borealis from "[Our Earth and its Story: a popular treatise on physical geography. Edited by R. Brown. With ... coloured plates and maps, etc.]"

aurora borealis from "[Our Earth and its Story: a popular treatise on ...

This image has been taken from scan 000289 from volume 02 of "[Our Earth and its Story: a popular treatise on physical geography. Edited by R. Brown. With ... coloured plates and maps, etc.]". The title and sub... More

aurora borealis from "[Our Earth and its Story: a popular treatise on physical geography. Edited by R. Brown. With ... coloured plates and maps, etc.]"

aurora borealis from "[Our Earth and its Story: a popular treatise on ...

This image has been taken from scan 000284 from volume 02 of "[Our Earth and its Story: a popular treatise on physical geography. Edited by R. Brown. With ... coloured plates and maps, etc.]". The title and sub... More

Aurora borealis, as observed March 1, 1872, at 9h. 25m. P.M

Aurora borealis, as observed March 1, 1872, at 9h. 25m. P.M

General information about the Popular and Applied Graphic Art print materials is available at: loc.gov Title information compiled by Junior Fellows, 2005-2017. Charles Scribner's Sons, copyright claimant. Trouv... More

Norwegian minority group from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Norwegian minority group from "Under the Rays of the Aurora Borealis: ...

This image has been taken from scan 000117 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Vardøhus Fortress from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Vardøhus Fortress from "Under the Rays of the Aurora Borealis: in the ...

This image has been taken from scan 000302 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

koira from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

koira from "Under the Rays of the Aurora Borealis: in the land of the ...

This image has been taken from scan 000282 from volume 01 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Alten from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Alten from "Under the Rays of the Aurora Borealis: in the land of the ...

This image has been taken from scan 000064 from volume 01 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

aurora borealis from "Paradise Found. The cradle of the human race at the North Pole. A study of the prehistoric world. ... With original illustrations"

aurora borealis from "Paradise Found. The cradle of the human race at ...

This image has been taken from scan 000101 from "Paradise Found. The cradle of the human race at the North Pole. A study of the prehistoric world. ... With original illustrations". The title and subject terms o... More

Norway from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Norway from "Under the Rays of the Aurora Borealis: in the land of the...

This image has been taken from scan 000294 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

bible translator from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

bible translator from "Under the Rays of the Aurora Borealis: in the l...

This image has been taken from scan 000101 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

portrait from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

portrait from "Under the Rays of the Aurora Borealis: in the land of t...

This image has been taken from scan 000053 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Clement Gundersen from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Clement Gundersen from "Under the Rays of the Aurora Borealis: in the ...

This image has been taken from scan 000097 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Sámi from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Sámi from "Under the Rays of the Aurora Borealis: in the land of the L...

This image has been taken from scan 000130 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

lapphund from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

lapphund from "Under the Rays of the Aurora Borealis: in the land of t...

This image has been taken from scan 000028 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Tethered Reindeer from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Tethered Reindeer from "Under the Rays of the Aurora Borealis: in the ...

This image has been taken from scan 000196 from volume 01 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

court interpreter from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

court interpreter from "Under the Rays of the Aurora Borealis: in the ...

This image has been taken from scan 000144 from volume 02 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Norway from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

Norway from "Under the Rays of the Aurora Borealis: in the land of the...

This image has been taken from scan 000076 from volume 01 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

aurora borealis from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

aurora borealis from "Under the Rays of the Aurora Borealis: in the la...

This image has been taken from scan 000259 from volume 01 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

tunnel from "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers"

tunnel from "Under the Rays of the Aurora Borealis: in the land of the...

This image has been taken from scan 000037 from volume 01 of "Under the Rays of the Aurora Borealis: in the land of the Lapps and Kvæns ... [Translated from the Norwegian and] edited by C. Siewers". The title a... More

Aurora borealis. Photomechanical print.

Aurora borealis. Photomechanical print.

Public domain illustrated book page scan, photomechanical print, free to use, no copyright restrictions image - Picryl description

The aurora borealis as seen at Dawson, the capitol of Yukon Territory

The aurora borealis as seen at Dawson, the capitol of Yukon Territory

Copyright 1908 by Craig. Wittemann collection.

Vying with the Aurora Borealis - Spectacular Electrical Display, Panama-Pacific International Exposition, San Francisco.

Vying with the Aurora Borealis - Spectacular Electrical Display, Panam...

Public domain photo of a monument, historic place, free to use, no copyright restrictions image - Picryl description

Theodore Roosevelt national park - Aurora Borealis

Theodore Roosevelt national park - Aurora Borealis

A show not to miss; make sure to keep an eye on space weather and if there is a chance of the Northern Lights, head into the park for a spectacular display of colors!

Passagerarfartyg, Pansarskeppet Oscar II.Återkomsten till Karlskrona från långresan.

Passagerarfartyg, Pansarskeppet Oscar II.Återkomsten till Karlskrona f...

Pansarskeppet Oscar II.Återkomsten till Karlskrona från långresan.

The Big Dipper constellation and the Aurora Borealis, or Northern Lights, shine above a static A-10 Thunderbolt II in Heritage Park at Eielson Air Force Base, Alaska, on Sept. 18, 2004. The Borealis are the result of solar particles colliding with gases in Earth's atmosphere. Early Eskimos and Indians believed different legends about the Northern Lights such as they were the souls of animals dancing in the sky or the souls of fallen enemies trying to rise again. The 355th Fighter Squadron stationed at Eielson currently flies the Thunderbolt aircraft. (U.S. Air Force photo by SENIOR AIRMAN Joshua Strang) (Released) (SUBSTANDARD)

The Big Dipper constellation and the Aurora Borealis, or Northern Ligh...

The original finding aid described this photograph as: Base: Eielson Air Force Base State: Alaska (AK) Country: United States Of America (USA) Scene Camera Operator: SRA Joshua Strang, USAF Release Status:... More

Space Science, Space Shuttle Program, NASA

Space Science, Space Shuttle Program, NASA

This photograph of aurora borealis, northern aurora, was taken during the Spacelab-J (SL-J) mission (STS-47). People who live in the northernmost areas like Alaska or work in the southernmost regions like Antar... More

Space Science. NASA Skylab space station

Space Science. NASA Skylab space station

This photograph of aurora borealis, northern aurora, was taken during the Spacelab-J (SL-J) mission (STS-47). People who live in the northernmost areas like Alaska or work in the southernmost regions like Antar... More

S48-24-001 - STS-048 - City lights and sunset taken during STS-48 mission

S48-24-001 - STS-048 - City lights and sunset taken during STS-48 miss...

The original finding aid described this as: Description: City lights views taken during the STS-48 mission from the space shuttle Discovery. Subject Terms: EARTH OBSERVATIONS (FROM SPACE), STS-48, DISCOVERY (... More

Aurora Borealis on Jupiter - NASA/JPL Galileo Program Images

Aurora Borealis on Jupiter - NASA/JPL Galileo Program Images

This image, taken by NASA Galileo spacecraft, shows the darkside of Jupiter, the part not illuminated by sunlight. The curved line crossing from the lower left to the upper right is the auroral arc on the horiz... More

Crew Earth Observations (CEO) of the Aurora Borealis and city lights taken during Expedition Six

Crew Earth Observations (CEO) of the Aurora Borealis and city lights t...

ISS006-E-18382 (January 2003) --- Bright city lights along the coastline and interior of the eastern coast of the United States were captured with a digital still camera by one of the Expedition Six crewmembers... More

Crew Earth Observations (CEO) of the Aurora Borealis and city lights taken during Expedition Six

Crew Earth Observations (CEO) of the Aurora Borealis and city lights t...

ISS006-E-18372 (January 2003) --- The Aurora Borealis or “northern lights” and the Manicouagan Impact Crater reservoir (foreground) in Quebec, Canada, were featured in this photograph taken by astronaut Donald ... More

The Aurora Borealis, commonly knows as the Northern Lights, illuminates the early morning sky over Eielson Air Force Base, Alaska, on 8 September 2004. The lights are the result of solar particles colliding with gases in Earth's atmosphere. Early Eskimos and Indians believed different legends about the Northern Lights such as they were the souls of animals dancing in the sky or the souls of fallen enemies trying to rise again. (U.S. Air Force PHOTO by SENIOR AIRMAN Joshua Strang) (Released)

The Aurora Borealis, commonly knows as the Northern Lights, illuminate...

The original finding aid described this photograph as: Base: Eielson Air Force Base State: Alaska (AK) Country: United States Of America (USA) Scene Camera Operator: SRA Joshua Strang, USAF Release Status:... More

The Aurora Borealis, commonly knows as the Northern Lights, illuminates the early morning sky over Eielson Air Force Base, Alaska, on 8 September 2004. The lights are the result of solar particles colliding with gases in Earth's atmosphere. Early Eskimos and Indians believed different legends about the Northern Lights such as they were the souls of animals dancing in the sky or the souls of fallen enemies trying to rise again. (U.S. Air Force PHOTO by SENIOR AIRMAN Joshua Strang) (Released)

The Aurora Borealis, commonly knows as the Northern Lights, illuminate...

The original finding aid described this photograph as: Base: Eielson Air Force Base State: Alaska (AK) Country: United States Of America (USA) Scene Camera Operator: SRA Joshua Strang, USAF Release Status:... More

The Aurora Borealis or Northern Lights shines above Bear Lake at Eielson Air Force Base, Alaska, on 18 Jan. 2005. (U.S. Air Force PHOTO by SENIOR AIRMAN Joshua Strang) (Released)

The Aurora Borealis or Northern Lights shines above Bear Lake at Eiels...

The original finding aid described this photograph as: Base: Eielson Air Force Base State: Alaska (AK) Country: United States Of America (USA) Scene Camera Operator: SRA Joshua Strang, USAF Release Status:... More

The Aurora Borealis or Northern Lights shines above Bear Lake at Eielson Air Force Base, Alaska, on 18 Jan. 2005. (U.S. Air Force PHOTO by SENIOR AIRMAN Joshua Strang) (Released)

The Aurora Borealis or Northern Lights shines above Bear Lake at Eiels...

The original finding aid described this photograph as: Base: Eielson Air Force Base State: Alaska (AK) Country: United States Of America (USA) Scene Camera Operator: SRA Joshua Strang, USAF Release Status:... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians work on the solar array of a THEMIS probe in preparation for a light test. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2807

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians work on the solar array of a THEMIS probe in preparation for a light test. THEMIS consists of five identical probes,... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers install bolt cutters on one of the THEMIS probes. The cutters will separate each probe from the payload carrier. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2805

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers install bolt cutters on one of the THEMIS probes. The cutters will separate each probe from the payload carrier. The p... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker installs bolt cutters on one of the THEMIS probes. The cutters will separate each probe from the payload carrier. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2801

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker installs bolt cutters on one of the THEMIS probes. The cutters will separate each probe from the payload carrier. The ... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., the five probes of the THEMIS spacecraft remain under cover. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes, installation of bolt cutters that will separate each probe from the payload carrier, and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2799

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., the five probes of the THEMIS spacecraft remain under cover. The probes will undergo weeks of testing and launch preparations. ... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers maneuver one of the THEMIS probes before installing bolt cutters that will separate each probe from the payload carrier. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2803

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers maneuver one of the THEMIS probes before installing bolt cutters that will separate each probe from the payload carrier.... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a solar array on one of the THEMIS probes undergoes a light test. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2810

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a solar array on one of the THEMIS probes undergoes a light test. THEMIS consists of five identical probes, the largest number of... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a technician works on the solar array of a THEMIS probe in preparation for a light test. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2806

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a technician works on the solar array of a THEMIS probe in preparation for a light test. THEMIS consists of five identical prob... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers prepare one of the THEMIS probes for installation of bolt cutters that will separate each probe from the payload carrier. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2800

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers prepare one of the THEMIS probes for installation of bolt cutters that will separate each probe from the payload carrier... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers maneuver one of the THEMIS probes before installing bolt cutters that will separate each probe from the payload carrier. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2802

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers maneuver one of the THEMIS probes before installing bolt cutters that will separate each probe from the payload carrier.... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a technician arranges a light for a test on a solar array on one of the THEMIS probes. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2809

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a technician arranges a light for a test on a solar array on one of the THEMIS probes. THEMIS consists of five identical probes, ... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a light test on the solar arrays are complete on this probe of the THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2811

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a light test on the solar arrays are complete on this probe of the THEMIS spacecraft. THEMIS consists of five identical probes, t... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a solar array on one of the THEMIS probes undergoes a light test. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2808

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a solar array on one of the THEMIS probes undergoes a light test. THEMIS consists of five identical probes, the largest number ... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers install bolt cutters on one of the THEMIS probes. The cutters will separate each probe from the payload carrier. The probes will undergo weeks of testing and launch preparations. This includes a functional performance test to verify the state of health of each of the five probes and pressurization and leak checks of the reaction control systems. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-06pd2804

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusv...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., workers install bolt cutters on one of the THEMIS probes. The cutters will separate each probe from the payload carrier. The pr... More

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes arrives at the hazardous processing facility after leaving Astrotech Space Operations in Titusville, Fla. At the facility, the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2818

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes arrives at...

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes arrives at the hazardous processing facility after leaving Astrotech Space Operations in Titusville, Fla. At the facility, the probes will be placed ... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians help lower a shipping container over one of the five THEMIS probes for its move to the hazardous processing facility. There it will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2814

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians help lower a shipping container over one of the five THEMIS probes for its move to the hazardous processing facility.... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is ready to be covered for its move to the hazardous processing facility. There it will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2813

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is ready to be covered for its move to the hazardous processing facility. There it will be placed o... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is moved out of the facility and will be transported to the hazardous processing facility. There the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2816

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., one of the five THEMIS probes is moved out of the facility and will be transported to the hazardous processing facility. There t... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians are preparing one of five THEMIS probes to be secured inside a shipping container (behind it). The probes are being moved to the hazardous processing facility where they will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2812

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians are preparing one of five THEMIS probes to be secured inside a shipping container (behind it). The probes are being ... More

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes is being transported from Astrotech Space Operations in Titusville, Fla., to the hazardous processing facility. There the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2817

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes is being t...

KENNEDY SPACE CENTER, FLA. -- One of the five THEMIS probes is being transported from Astrotech Space Operations in Titusville, Fla., to the hazardous processing facility. There the probes will be placed on a s... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians release the overhead crane from the shipping container placed around one of the five THEMIS probes for its move to the hazardous processing facility. There the probes will be placed on a stand in preparation for fueling operations. Once fueling is complete, each probe will be weighed and individually mated to the payload carrier before pyrotechnics are installed. The fully integrated THEMIS payload is then ready for spin-balance testing and weighing. The final milestone is mating THEMIS to its upper stage booster. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. These lights are the visible manifestations of invisible energy releases, called geomagnetic substorms, in near-Earth space. THEMIS will not only seek to answer where and when substorms start, but will also provide clues as to how and why these space storms create havoc on satellites, terrestrial power grids, and communication systems. THEMIS will be transported to Pad 17-B at Cape Canaveral Air Force Station on February 1 for mating to the Delta II rocket. Launch is scheduled for Feb. 15. Photo credit: NASA/George Shelton KSC-06pd2815

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusvi...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., technicians release the overhead crane from the shipping container placed around one of the five THEMIS probes for its move to th... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2849

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titus...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. T... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2848

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titu...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. T... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker examines connections on the THEMIS spacecraft, which is expected to be fueled Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2850

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titus...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker examines connections on the THEMIS spacecraft, which is expected to be fueled Jan. 3-5. THEMIS consists of five identi... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker prepares one of the THEMIS probes for electrical system checkout. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2846

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titus...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker prepares one of the THEMIS probes for electrical system checkout. THEMIS consists of five identical probes, the large... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-06pd2847

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titu...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations in Titusville, Fla., a worker attaches a high pressure line on the THEMIS spacecraft in preparation for fueling, which is scheduled for Jan. 3-5. T... More

Aurora Borealis above Mt. Healy in Denali National Park

Aurora Borealis above Mt. Healy in Denali National Park

Aurora Borealis above Mt. Healy in Denali National Park

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, workers check the lines attached to the lower end of the United Launch Alliance Delta II rocket before it is lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0028

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Ai...

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, workers check the lines attached to the lower end of the United Launch Alliance Delta II rocket before it is lif... More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket moves into place in front of at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket will be raised to a vertical position and lifted into the tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0024

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch All...

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket moves into place in front of at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Flo... More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket leaves for Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0021

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch All...

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket leaves for Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the TH... More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position. The rocket will then be lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0026

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Ai...

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position... More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position. The rocket will then be lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0027

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Ai...

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the first stage of a United Launch Alliance Delta II rocket is raised off its transporter to a vertical position... More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is lifted up into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0029

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Ai...

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is lifted up into the mobile service tower. The rocket is the launch... More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, a crane (foreground) raises the first stage of a United Launch Alliance Delta II rocket off its transporter to a vertical position. The rocket will then be lifted into the mobile service tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0025

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Ai...

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, a crane (foreground) raises the first stage of a United Launch Alliance Delta II rocket off its transporter to a... More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket is on its way to Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0022

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Al...

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket is on its way to Launch Pad 17-B on Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for... More

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket arrives at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0023

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alli...

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket arrives at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket is th... More

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is moved inside the mobile service tower where nine solid rocket boosters will be attached in sets of three. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0030

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Ai...

KENNEDY SPACE CENTER, FLA. -- On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the United Launch Alliance Delta II rocket is moved inside the mobile service tower where nine solid rocket boos... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0031

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identic... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0033

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEM... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0032

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, technicians prepare THEMIS probes for solar array illumination telemetry tests. THEMIS consists of five identic... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0035

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at ...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a technician observes one of the THEMIS probes as it undergoes solar array illumination telemetry testing. THEMI... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, one of the THEMIS probes undergoes solar array illumination telemetry testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton KSC-07pd0034

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at ...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, one of the THEMIS probes undergoes solar array illumination telemetry testing. THEMIS consists of five identical... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0049

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microc... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a technician helps guide one of the THEMIS probes toward the probe carrier for installation. When all five probes are in place, the carrier will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0054

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a techni...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a technician helps guide one of the THEMIS probes toward the probe carrier for installation. When all five probes are in place, the carrier will un... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0056

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technic...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-bal... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0046

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians adjust connections of the overhead crane on one of the THEMIS probes. The probe and its other four mates will be lifted and installed on the probe carrier in the background. The probes will then undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0051

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians adjust connections of the overhead crane on one of the THEMIS probes. The probe and its other four mates will be lifted and installed o... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0045

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light in... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, one of the five THEMIS probes is lifted from a scale. It will be moved to a probe carrier for installation, along with its four mates, and then undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0053

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, one of t...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, one of the five THEMIS probes is lifted from a scale. It will be moved to a probe carrier for installation, along with its four mates, and then und... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0050

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microc... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians weigh one of the THEMIS probes. Next the probe will be installed on a probe carrier, along with is four mates, and then undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0052

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians weigh one of the THEMIS probes. Next the probe will be installed on a probe carrier, along with is four mates, and then undergo spin-ba... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0047

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct white light inspection of the THEMIS probes. They will also undergo black light inspection. White light inspection assures the... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0044

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, a worker prepares the THEMIS spacecraft for black/white light inspection. White light inspection assures the telemetry is operating. Black light in... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microcontamination, minute cracks or fluid leaks. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0048

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians conduct black light inspection of the THEMIS probes. Black light inspection uses UVA fluorescence to detect possible particulate microc... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0055

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technici...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, technicians guide one of the THEMIS probes into position on the probe carrier. When all five probes are in place, the carrier will undergo spin-bala... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a worker checks data on the integrated THEMIS spacecraft sitting on the spin table. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0070

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, a worker checks data on the integrated THEMIS spacecraft sitting on the spin table. THEMIS consists of five id... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is on ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0074

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the int...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is on ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific s... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers look over the integrated THEMIS spacecraft before spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0073

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers look over the integrated THEMIS spacecraft before spin-balance testing. THEMIS consists of five identical probes, the largest number of sci... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0072

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the int...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the integrated THEMIS spacecraft is ready for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific sate... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0071

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, worker...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft for spin-balance testing. THEMIS consists of five identical probes, the largest number of scient... More

KENNEDY SPACE CENTER, FLA. -- A solid rocket booster is lifted into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, joining another already there. The boosters are being installed around the United Launch Alliance Delta II rocket for launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0080

KENNEDY SPACE CENTER, FLA. -- A solid rocket booster is lifted into ...

KENNEDY SPACE CENTER, FLA. -- A solid rocket booster is lifted into the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station, joining another already there. The boosters are being inst... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers get ready to move the integrated THEMIS spacecraft to the spin table in the foreground. There it will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0068

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers get ready to move the integrated THEMIS spacecraft to the spin table in the foreground. There it will ... More

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket in the mobile service tower. A total of nine will assist in the launch of the THEMIS integrated spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/Jack Pfaller KSC-07pd0085

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered aro...

KENNEDY SPACE CENTER, FLA. -- Solid rocket boosters are clustered around the base of the United Launch Alliance Delta II rocket in the mobile service tower. A total of nine will assist in the launch of the TH... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft to be moved to a spin table for spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0066

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility ...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers prepare the integrated THEMIS spacecraft to be moved to a spin table for spin-balance testing. THEMIS... More

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the media are dressed in clean room, or bunny, suits to photograph the integrated THEMIS spacecraft. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0075

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the med...

KENNEDY SPACE CENTER, FLA. -- At Astrotech Space Operations, the media are dressed in clean room, or bunny, suits to photograph the integrated THEMIS spacecraft. THEMIS consists of five identical probes, the ... More

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers guide the integrated THEMIS spacecraft onto the spin table in the foreground. There it will undergo spin-balance testing. THEMIS consists of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. THEMIS is scheduled to launch Feb. 15 from Cape Canaveral Air Force Station. Photo credit: NASA/George Shelton KSC-07pd0069

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility a...

KENNEDY SPACE CENTER, FLA. -- In the Hazardous Processing Facility at Astrotech Space Operations, workers guide the integrated THEMIS spacecraft onto the spin table in the foreground. There it will undergo s... More

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