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My.. Sky. - A field with a soccer field and trees in the background

My.. Sky. - A field with a soccer field and trees in the background

Picryl description: Public domain image of trees, forest, park, free to use, no copyright restrictions.

Tourist Attraction - My.. Sky.

Tourist Attraction - My.. Sky.

Picryl description: Public domain image of trees, forest, park, free to use, no copyright restrictions.

Water waters mirroring.

Water waters mirroring.

A stone wall with a tree in front of it Kassel tree input.

A stone wall with a tree in front of it Kassel tree input.

The entrance to the castle / A stone wall with a stone archway in the middle of it public domain stock photo.

Nature of the clouds of Venus : note

Nature of the clouds of Venus : note

In this document, Carl Sagan considers the properties of the clouds of Venus. He notes that the clouds "are not water, because the temperature of the clouds of Venus is so large that much of the water vapor wou... More

Range : 4.2 million km. ( 2.6 million miles ) P-34649 This photograph of Neptune's southern hemisphere taken by Voyager 2's narrow angle camera, through the green and clear filters. The smallest feature that can be seen are 38 km ( 24 miles ) across. the almond shaped structure at the left is a large cloud system that has been seen for several weeks. Internal details in the feature have become increasingly apparent as Voyager 2 has approached. Systems with similiar shapes in Jupiter's atmosphere rotate about their centers, rolling in the local winds that increase toward the south. However, the wispy nature of the white central clouds in this Neptunian feature make confirmation of the syste.m's rotation difficult ARC-1989-AC89-7014

Range : 4.2 million km. ( 2.6 million miles ) P-34649 This photograph...

Range : 4.2 million km. ( 2.6 million miles ) P-34649 This photograph of Neptune's southern hemisphere taken by Voyager 2's narrow angle camera, through the green and clear filters. The smallest feature that ... More

Range : 4.86 million km (3 million mi.) This dramatic view of the crescents of Neptune and Triton was acquired by Voyager 2 approx. 3 days, 6 1/2 hours after its closest approach to Neptune. The space craft was pluging southward at an angle of 48 degrees to the plane of the ecliptic. This direction, combined with the current season of southern summer in the Neptune system, gives this picture its unique geometry. The smallest detail discernible is approx. 90 km (56 mi.). Color was produced using images taken through the narrow-angle camera's clear, orange and green filters. Neptune does not appear as blue from this viewpoint because the forward scattering nature of its atmosphere is more important than its absorption of red light at this high phase angle (134 degrees). ARC-1989-AC89-7062

Range : 4.86 million km (3 million mi.) This dramatic view of the cre...

Range : 4.86 million km (3 million mi.) This dramatic view of the crescents of Neptune and Triton was acquired by Voyager 2 approx. 3 days, 6 1/2 hours after its closest approach to Neptune. The space craft w... More

Inside the Vertical Processing Facility, the Chandra X-ray Observatory sits inside the payload canister, ready to be moved to Launch Pad 39B. Liftoff will take place no earlier than July 20 at 12:36 a.m. EDT aboard Space Shuttle Columbia, on mission STS-93. Chandra will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe, map the location of dark matter and help to identify it, and probe the faintest of active galaxies, allowing scientists to study not only how their energy output changes with time, but also how these objects produce their intense energy emissions in the first place. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0708

Inside the Vertical Processing Facility, the Chandra X-ray Observatory...

Inside the Vertical Processing Facility, the Chandra X-ray Observatory sits inside the payload canister, ready to be moved to Launch Pad 39B. Liftoff will take place no earlier than July 20 at 12:36 a.m. EDT ab... More

Inside the Vertical Processing Facility, doors on the payload canister begin to close on the Chandra X-ray Observatory inside before being moved to Launch Pad 39B. Liftoff will take place no earlier than July 20 at 12:36 a.m. EDT aboard Space Shuttle Columbia, on mission STS-93. Chandra will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe, map the location of dark matter and help to identify it, and probe the faintest of active galaxies, allowing scientists to study not only how their energy output changes with time, but also how these objects produce their intense energy emissions in the first place. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0709

Inside the Vertical Processing Facility, doors on the payload canister...

Inside the Vertical Processing Facility, doors on the payload canister begin to close on the Chandra X-ray Observatory inside before being moved to Launch Pad 39B. Liftoff will take place no earlier than July 2... More

STS-93 Commander Eileen M. Collins talks to the media after arriving at KSC's Shuttle Landing Facility to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Collins is the first woman to serve as mission commander. Joining Collins are Pilot Jeffrey S. Ashby and Mission Specialists Steven A. Hawley (Ph.D.), Catherine G. Coleman (Ph.D.) and Michel Tognini of France, with the Centre National d'Etudes Spatiales (CNES). The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0714

STS-93 Commander Eileen M. Collins talks to the media after arriving a...

STS-93 Commander Eileen M. Collins talks to the media after arriving at KSC's Shuttle Landing Facility to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the ... More

STS-93 Mission Specialist Steven A. Hawley (Ph.D.) grins as he steps down from a T-38 jet aircraft after landing at KSC's Shuttle Landing Facility. The STS-93 crew are at KSC to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Joining Hawley are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Catherine G. Coleman (Ph.D.) and Michel Tognini of France, with the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0713

STS-93 Mission Specialist Steven A. Hawley (Ph.D.) grins as he steps d...

STS-93 Mission Specialist Steven A. Hawley (Ph.D.) grins as he steps down from a T-38 jet aircraft after landing at KSC's Shuttle Landing Facility. The STS-93 crew are at KSC to participate in Terminal Countdow... More

The STS-93 crew pose for photographers and the media after arriving at KSC's Shuttle Landing Facility to participate in Terminal Countdown Demonstration Tests (TCDT) this week. From left are Mission Specialists Steven A. Hawley (Ph.D.) and Michel Tognini of France, Commander Eileen M. Collins at the microphone, Pilot Jeffrey S. Ashby, and Mission Specialist Catherine G. Coleman (Ph.D.). Collins is the first woman to serve as mission commander. Tognini represents the Centre National d'Etudes Spatiales (CNES). TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0715

The STS-93 crew pose for photographers and the media after arriving at...

The STS-93 crew pose for photographers and the media after arriving at KSC's Shuttle Landing Facility to participate in Terminal Countdown Demonstration Tests (TCDT) this week. From left are Mission Specialists... More

STS-93 Commander Eileen M. Collins smiles on her arrival at KSC's Shuttle Landing Facility aboard a T-38 jet aircraft to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Joining Collins are Pilot Jeffrey S. Ashby and Mission Specialists Steven A. Hawley (Ph.D.), Catherine G. Coleman (Ph.D.) and Michel Tognini of France, with the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0710

STS-93 Commander Eileen M. Collins smiles on her arrival at KSC's Shut...

STS-93 Commander Eileen M. Collins smiles on her arrival at KSC's Shuttle Landing Facility aboard a T-38 jet aircraft to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities f... More

STS-93 Michel Tognini of France arrives at KSC's Shuttle Landing Facility to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Joining Tognini are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Catherine G. Coleman (Ph.D.) and Steven A. Hawley (Ph.D.). Tognini represents the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0712

STS-93 Michel Tognini of France arrives at KSC's Shuttle Landing Facil...

STS-93 Michel Tognini of France arrives at KSC's Shuttle Landing Facility to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the crew with the mission, provid... More

STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) grins on her arrival at KSC's Shuttle Landing Facility aboard a T-38 jet to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Joining Coleman are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby and Mission Specialists Steven A. Hawley (Ph.D.) and Michel Tognini of France, who is with the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe KSC-99pp0711

STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) grins on her ar...

STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) grins on her arrival at KSC's Shuttle Landing Facility aboard a T-38 jet to participate in Terminal Countdown Demonstration Tests (TCDT) this week. TCDT ac... More

STS-93 Commander Eileen M. Collins climbs into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. Collins is the first woman to serve as mission commander. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew are Pilot Jeffrey S. Ashby and Mission Specialists Steven A. Hawley (Ph.D.), Catherine G. Coleman (Ph.D.), and Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES). The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0726

STS-93 Commander Eileen M. Collins climbs into an M-113 armored person...

STS-93 Commander Eileen M. Collins climbs into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. Collins is the first woman to serve as mission commander. In prepar... More

During emergency egress training inside an M-113 armored personnel carrier at the launch pad, Mission Specialist Michel Tognini of France and Commander Eileen M. Collins share a light moment. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Also at KSC are Pilot Jeffrey S. Ashby and Mission Specialists Steven A. Hawley (Ph.D.), and Catherine G. Coleman (Ph.D.). Collins is the first woman to serve as mission commander. Tognini represents the Centre National d'Etudes Spatiales (CNES). The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0725

During emergency egress training inside an M-113 armored personnel car...

During emergency egress training inside an M-113 armored personnel carrier at the launch pad, Mission Specialist Michel Tognini of France and Commander Eileen M. Collins share a light moment. In preparation for... More

STS-93 Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES), pauses for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Steven A. Hawley (Ph.D.) and Catherine G. Coleman (Ph.D.). Collins is the first woman to serve as a mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0728

STS-93 Michel Tognini of France, who represents the Centre National d'...

STS-93 Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES), pauses for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part ... More

The STS-93 crew pose in front of an M-113, an armored personnel carrier, which they will use for emergency egress training from the launch pad. From left are Mission Specialist Steven A. Hawley (Ph.D.), Pilot Jeffrey S. Ashby, Mission Specialist Michel Tognini of France, Commander Eileen M. Collins and Mission Specialist Catherine G. Coleman (Ph.D.). Collins is the first woman to serve as mission commander. Tognini represents the Centre National d'Etudes Spatiales (CNES). TCDT activities familiarize the crew with the mission, provide training in emergency exit from the orbiter and launch pad, and include a launch-day dress rehearsal culminating with a simulated main engine cut-off. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0723

The STS-93 crew pose in front of an M-113, an armored personnel carrie...

The STS-93 crew pose in front of an M-113, an armored personnel carrier, which they will use for emergency egress training from the launch pad. From left are Mission Specialist Steven A. Hawley (Ph.D.), Pilot J... More

STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) smiles for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Steven A. Hawley (Ph.D.) and Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as a mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0729

STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) smiles for the ...

STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) smiles for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In prepara... More

Under the watchful eyes of Capt. George Hoggard (left), trainer with the KSC Fire Department, STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) drives the M-113 armored personnel carrier during emergency egress training at the launch pad. Behind her is Pilot Jeffrey S. Ashby and Commander Eileen M. Collins. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew participating are Mission Specialists Steven A. Hawley (Ph.D.) and Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as a mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0730

Under the watchful eyes of Capt. George Hoggard (left), trainer with t...

Under the watchful eyes of Capt. George Hoggard (left), trainer with the KSC Fire Department, STS-93 Mission Specialist Catherine G. Coleman (Ph.D.) drives the M-113 armored personnel carrier during emergency e... More

STS-93 Mission Specialist Steven A. Hawley (Ph.D.) smiles for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Catherine G. Coleman (Ph.D.) and Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as a mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0731

STS-93 Mission Specialist Steven A. Hawley (Ph.D.) smiles for the phot...

STS-93 Mission Specialist Steven A. Hawley (Ph.D.) smiles for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In preparation... More

Under the watchful eyes of KSC Fire Department trainer Capt. George Hoggard (seated on the front), STS-93 Mission Specialist Michel Tognini of France (right) drives the M-113 armored personnel carrier during emergency egress training at the launch pad. Tognini represents the Centre National d'Etudes Spatiales (CNES). At the far left is Roland Nedelkovich, with the Vehicle Integration Test Team, JSC. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew participating are Commander Eileen M. Collins, Pilot Jeffrey S. Ashby, and Mission Specialists Steven A. Hawley (Ph.D.) and Catherine G. Coleman (Ph.D.) Collins is the first woman to serve as a Shuttle commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0732

Under the watchful eyes of KSC Fire Department trainer Capt. George Ho...

Under the watchful eyes of KSC Fire Department trainer Capt. George Hoggard (seated on the front), STS-93 Mission Specialist Michel Tognini of France (right) drives the M-113 armored personnel carrier during em... More

STS-93 Pilot Jeffrey S. Ashby pauses for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In preparation for their mission, the STS-93 crew are participating in Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. Others in the crew are Commander Eileen M. Collins and Mission Specialists Steven A. Hawley (Ph.D.), Catherine G. Coleman (Ph.D.), and Michel Tognini of France, who represents the Centre National d'Etudes Spatiales (CNES). Collins is the first woman to serve as a mission commander. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0727

STS-93 Pilot Jeffrey S. Ashby pauses for the photographer before climb...

STS-93 Pilot Jeffrey S. Ashby pauses for the photographer before climbing into an M-113 armored personnel carrier at the launch pad to take part in emergency egress training. In preparation for their mission, t... More

Inside an M-113 armored personnel carrier at the launch pad, the STS-93 crew take part in emergency egress training under the watchful eyes of Capt. George Hoggard (center), trainer with the KSC Fire Department. From left are Mission Specialist Michel Tognini of France, Commander Eileen M. Collins, Hoggard, Mission Specialist Steven A. Hawley (Ph.D.), Pilot Jeffrey S. Ashby, and Mission Specialist Catherine G. Coleman (Ph.D.). Collins is the first woman to serve as mission commander. Tognini represents the Centre National d'Etudes Spatiales (CNES). The training is part of Terminal Countdown Demonstration Test activities that also include a launch-day dress rehearsal culminating with a simulated main engine cut-off. The primary mission of STS-93 is the release of the Chandra X-ray Observatory, which will allow scientists from around the world to obtain unprecedented X-ray images of exotic environments in space to help understand the structure and evolution of the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. The targeted launch date for STS-93 is no earlier than July 20 at 12:36 a.m. EDT from Launch Pad 39B KSC-99pp0724

Inside an M-113 armored personnel carrier at the launch pad, the STS-9...

Inside an M-113 armored personnel carrier at the launch pad, the STS-93 crew take part in emergency egress training under the watchful eyes of Capt. George Hoggard (center), trainer with the KSC Fire Department... More

STS-93 Pilot Jeffrey S. Ashby signs autographs after a mission presentation for KSC employees. The five-day mission primarily released the Chandra X-ray Observatory, allowing scientists from around the world to study some of the most distant, powerful and dynamic objects in the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. STS-93 was also the first mission to have a woman, Eileen M. Collins, serving as Shuttle commander KSC-99pp1058

STS-93 Pilot Jeffrey S. Ashby signs autographs after a mission present...

STS-93 Pilot Jeffrey S. Ashby signs autographs after a mission presentation for KSC employees. The five-day mission primarily released the Chandra X-ray Observatory, allowing scientists from around the world to... More

STS-93 Commander Eileen M. Collins signs autographs after a mission presentation for KSC employees. The five-day mission primarily released the Chandra X-ray Observatory, allowing scientists from around the world to study some of the most distant, powerful and dynamic objects in the universe. Chandra is expected to provide unique and crucial information on the nature of objects ranging from comets in our solar system to quasars at the edge of the observable universe. Since X-rays are absorbed by the Earth's atmosphere, space-based observatories are necessary to study these phenomena and allow scientists to analyze some of the greatest mysteries of the universe. STS-93 was also the first mission to have a woman serving as Shuttle commander KSC-99pp1059

STS-93 Commander Eileen M. Collins signs autographs after a mission pr...

STS-93 Commander Eileen M. Collins signs autographs after a mission presentation for KSC employees. The five-day mission primarily released the Chandra X-ray Observatory, allowing scientists from around the wor... More

VANDENBERG AIR FORCE BASE, Calif. – Nature and technology coexist at Space Launch Complex 2 on Vandenberg Air Force Base in California where preparations are underway for the upcoming launch of NASA's Orbiting Carbon Observatory-2 mission, or OCO-2, aboard a United Launch Alliance Delta II rocket in July. The observatory will collect precise global measurements of carbon dioxide in the Earth's atmosphere and provide scientists with a better idea of the chemical compound's impacts on climate change. Scientists will analyze this data to improve our understanding of the natural processes and human activities that regulate the abundance and distribution of this important atmospheric gas. To learn more about OCO-2, visit http://oco.jpl.nasa.gov. Photo credit: NASA/Kim Shiflett KSC-2014-2091

VANDENBERG AIR FORCE BASE, Calif. – Nature and technology coexist at S...

VANDENBERG AIR FORCE BASE, Calif. – Nature and technology coexist at Space Launch Complex 2 on Vandenberg Air Force Base in California where preparations are underway for the upcoming launch of NASA's Orbiting ... More

A bike is parked on the beach at sunset. Bike bicycle velocipede, travel vacation.

A bike is parked on the beach at sunset. Bike bicycle velocipede, trav...

The Sun. Free images of The Sun. Artworks and photographs, available for commercial use and free download. Copyright-free, no attribution required. A bike is parked on the beach at sunset

The aurora bore lights up the sky over a lake. Aurora borealis northern lights atmosphere.

The aurora bore lights up the sky over a lake. Aurora borealis norther...

Northern lights over a lake / Aurora borealis over a lake / Public domain stock photo.

A pile of logs and branches in the woods. Environment nature damage.

A pile of logs and branches in the woods. Environment nature damage.

A pile of fallen trees in the forest / A pile of logs and logs in the woods / Public domain photo of forest, woods.

A painting of a woman in a dress standing next to a boat. Princess owl fairy tales.

A painting of a woman in a dress standing next to a boat. Princess owl...

A woman standing next to a pile of books / A painting of a woman in a dress standing next to a boat / Public domain stock illustration.

Public domain stock image. Sky blue clouds.

Public domain stock image. Sky blue clouds.

Public Domain Stock Photo . Winter fog snow.

Public Domain Stock Photo . Winter fog snow.

Morning clouds. Free images of the morning. Use free images of the morning sky without any copyright restrictions.

Sunset evening clouds, travel vacation.

Sunset evening clouds, travel vacation.

Public domain stock image. Winter hoarfrost cold.

Public domain stock image. Winter hoarfrost cold.

Public domain stock image. Sunrise web reed.

Public domain stock image. Sunrise web reed.

Public domain stock image. Thunderstorm clouds thunder cell.

Public domain stock image. Thunderstorm clouds thunder cell.

Public domain stock image. Volcano lava embers.

Public domain stock image. Volcano lava embers.

Switzerland gurnigel long exposure building.

Switzerland gurnigel long exposure building.

Public domain stock image. Storm thunderstorm clouds.

Public domain stock image. Storm thunderstorm clouds.

Public domain stock image. Sunset evening sky red

Public domain stock image. Sunset evening sky red

Public domain stock image. Winter trees snow.

Public domain stock image. Winter trees snow.

Public domain stock image. Sunset palm lava

Public domain stock image. Sunset palm lava

Water waters mirroring.

Water waters mirroring.

Public domain stock image. Sunset water bridge

Public domain stock image. Sunset water bridge

Sunset light abendstimmung, travel vacation.

Sunset light abendstimmung, travel vacation.

Public domain stock image. Cloudy sky blue.

Public domain stock image. Cloudy sky blue.

Public Domain Stock Photo . Water water level wave.

Public Domain Stock Photo . Water water level wave.

Water: Free images of reflections in the water, available for commercial use and free download. Copyright-free, no attribution required.

Sky cloud blue, backgrounds textures.

Sky cloud blue, backgrounds textures.

Free images of heaven. Public domain stock photo of heaven. Royalty free photos.

Public Domain Stock Photo . Sunrise grass mood.

Public Domain Stock Photo . Sunrise grass mood.

Morning clouds. Free images of the morning. Use free images of the morning sky without any copyright restrictions.

Public Domain Stock Photo . Night sky stars.

Public Domain Stock Photo . Night sky stars.

Starry night. Free images of stars in the sky. Use free photos of the night sky without any copyright restrictions.

Public domain stock image. Sunset sun evening sky

Public domain stock image. Sunset sun evening sky

The sun is setting over a vineyard field. Morning sky

The sun is setting over a vineyard field. Morning sky

Morning clouds. Free images of the morning. Use free images of the morning sky without any copyright restrictions.

A white horse standing in a field under a flying saucer. Ufo aliens abduction.

A white horse standing in a field under a flying saucer. Ufo aliens ab...

A cow flying through a field with a cow flying in the air / A white horse standing in a field under a flying saucer / Public domain stock photography.

A vase filled with yellow flowers sitting on a table. Flowers sun yellow.

A vase filled with yellow flowers sitting on a table. Flowers sun yell...

A vase of yellow flowers with a shadow on a wall / A vase of yellow flowers with long green stems public domain stock photo.

A plane flying through a cloudy blue sky. Sky clouds atmosphere.

A plane flying through a cloudy blue sky. Sky clouds atmosphere.

A blue sky with white clouds and a plane / A blue sky with white clouds and a jet trail public domain stock photo.

A group of people on a beach flying a kite. Sky clouds atmosphere.

A group of people on a beach flying a kite. Sky clouds atmosphere.

A blue sky with clouds and a white cloud / A blue sky with clouds and a few clouds / Public domain stock photo.

A dirt path in the middle of a forest. Forest trees

A dirt path in the middle of a forest. Forest trees

A forest of tall trees in the woods / A forest with tall trees / Public domain photo of forest, woods.

A close up of some tall grass in a field. Field wide plant.

A close up of some tall grass in a field. Field wide plant.

The grass is always greener on the other side of the field / Close up of a plant public domain stock photo.

A stone walkway over a small pond in a park. Pond away landscape.

A stone walkway over a small pond in a park. Pond away landscape.

A stone path crosses a pond in a garden / A stone path crosses a pond in a garden public domain stock photo.

A woman standing next to a deer in a forest. Magic forest mystical.

A woman standing next to a deer in a forest. Magic forest mystical.

A woman in a forest with a deer and a deer / A woman standing next to a deer in a forest / Public domain stock illustration. A woman in a forest with a deer and a deer / A woman standing next to a deer in a fo... More

A woman in a mermaid costume standing in front of a ship. Fee mermaid ship

A woman in a mermaid costume standing in front of a ship. Fee mermaid ...

A woman with a sword and a pirate ship in the background / A woman in a mermaid costume standing in front of a ship / Public domain stock illustration.

A wooden bridge over a small stream in a forest. Bridge forest

A wooden bridge over a small stream in a forest. Bridge forest

A bridge in a park / A bridge in the woods public domain stock photo.

A flock of birds flying through a cloudy sky. Sunset sun ducks

A flock of birds flying through a cloudy sky. Sunset sun ducks

A flock of birds flying in the sky / A flock of birds flying in the sky public domain stock photo.

A plane flying through a cloudy sky at sunset. Sky clouds sunset

A plane flying through a cloudy sky at sunset. Sky clouds sunset

The sun sets behind the clouds / The sky is blue and yellow public domain stock photo.

A plane flying through a blue cloudy sky. Cloud wind sky.

A plane flying through a blue cloudy sky. Cloud wind sky.

A blue sky with clouds / A blue sky with clouds public domain stock photo.

A lone tree stands in a field in the fog. Fog colourless tree.

A lone tree stands in a field in the fog. Fog colourless tree.

A tree in the fog, black and white / A lone tree stands in a field in the fog / Public domain stock photo of a nature.

A couple of chairs sitting on top of a sandy beach. Sea florida beach

A couple of chairs sitting on top of a sandy beach. Sea florida beach

A person laying on a beach under a thatched umbrella / A beach with a couple of chairs and umbrellas / Public domain stock photo.

A park bench sitting in the middle of a forest. Autumn tree golden autumn.

A park bench sitting in the middle of a forest. Autumn tree golden aut...

Autumn in the forest wallpaper / A forest of trees with golden leaves in the sunlight public domain stock photo.

A picture of a mountain and a lake with birds flying around it. Amazing moon sky.

A picture of a mountain and a lake with birds flying around it. Amazin...

Planet Earth: Free images of Earth from space, available for commercial use and free download. Copyright-free, no attribution required.

A large bird flying over a body of water. Adler water mountains.

A large bird flying over a body of water. Adler water mountains.

A bird flying over a lake with a mountain in the background / A large bird flying over a body of water / Public domain stock illustration.

A path in the woods with a stream running through it. Forest forest path trees.

A path in the woods with a stream running through it. Forest forest pa...

A path through a forest in the woods / A path through a forest with trees and a foggy sky public domain stock photo.

A full moon over a body of water surrounded by rocks. Luna water stones.

A full moon over a body of water surrounded by rocks. Luna water stone...

Water: Free images of reflections in the water, available for commercial use and free download. Copyright-free, no attribution required.

A couple of people standing on top of a snow covered slope. Starry sky star long exposure.

A couple of people standing on top of a snow covered slope. Starry sky...

The night sky over the mountains / The stars are visible in the night sky public domain stock photo.

A man riding a snowboard down a snow covered slope. Sky blue sun heaven.

A man riding a snowboard down a snow covered slope. Sky blue sun heave...

The sky is a beautiful blue sky / A blue sky with some clouds public domain stock photo.

A stream running through a forest filled with lots of rocks. Forest moss stream.

A stream running through a forest filled with lots of rocks. Forest mo...

A small stream with a few rocks in the middle of it / A small stream running through a forest with moss covered rocks / Public domain photo of forest, woods.

A dirt road with a bunch of leaves on it. Horse trail trees.

A dirt road with a bunch of leaves on it. Horse trail trees.

A path in a park with leaves and trees / A dirt road with a bunch of leaves on it / Public domain stock photography.

The sun is setting over the mountains in the distance. Sunrise nature landscape.

The sun is setting over the mountains in the distance. Sunrise nature ...

Morning Landscape. Free images of mornings. Use free photos of nature without any copyright restrictions.

A cloudy sky with a bird flying in the distance. Clouds mystical

A cloudy sky with a bird flying in the distance. Clouds mystical

The sun is shining through the clouds / The sun through the clouds public domain stock photo.

A picture of a city in the distance with mountains in the foreground. Artmatic voyager 3d 3 dimensional.

A picture of a city in the distance with mountains in the foreground. ...

Fear. Free images of fear. Use free photos of people in fear without any copyright restrictions.

A man riding a snowboard down a snow covered slope. Matagalls snow mountains.

A man riding a snowboard down a snow covered slope. Matagalls snow mou...

A plane flying over a white field / A blue sky with a white cloud in the background public domain stock photo.

A group of hot air balloons flying in the sky. Balloon special shapes rodeo balloon fiesta.

A group of hot air balloons flying in the sky. Balloon special shapes ...

Flying Balloons: Free images of hot air balloons all over the World, available for commercial use and free download. Copyright-free, no attribution required.

A sunset with clouds and trees in the foreground. Afterglow sunset evening sky

A sunset with clouds and trees in the foreground. Afterglow sunset eve...

Sunset over the lake in the evening / Sunset over the trees, taken from the back porch public domain stock photo.

Old country thatched cottage historically building. A house with a thatched roof in the woods

Old country thatched cottage historically building. A house with a tha...

Architecture stock photograph: A house in the village / A house with a thatched roof in the woods.

A person standing on top of a mountain next to a cloud. Sky clouds blue.

A person standing on top of a mountain next to a cloud. Sky clouds blu...

A large cloud over a mountain peak / A large cloud in the sky above a mountain public domain stock photo. A large cloud over a mountain peak / A large cloud in the sky above a mountain public domain stock photo.

A body of water surrounded by lots of trees. Autumn landscape lake.

A body of water surrounded by lots of trees. Autumn landscape lake.

Autumn trees in the forest / Autumn in the forest, autumn, forest, lake, trees, nature, hd wallpaper public domain stock photo.

A close up of a tree with white flowers. Blossom old country meadow.

A close up of a tree with white flowers. Blossom old country meadow.

The cherry blossoms are blooming in the spring / A branch of a cherry tree with white flowers public domain stock photo.

A large white house sitting next to a body of water. Landscape farmhouse agriculture.

A large white house sitting next to a body of water. Landscape farmhou...

A house sits on a small lake in the countryside / A house on a lake surrounded by trees public domain stock photo.

A tree in a field with a sunset in the background Sunset evening clouds, travel vacation.

A tree in a field with a sunset in the background Sunset evening cloud...

A tree is silhouetted against a sunset / A sunset with a tree in the foreground and a field in the background public domain stock photo.

A large body of water filled with lots of ducks Rieselfelder münster rest.

A large body of water filled with lots of ducks Rieselfelder münster r...

A large body of water with a bunch of ducks in it / A large body of water filled with lots of ducks / Animals public domain photography.

The sun is setting behind some tall grass. Sunrise grass mood.

The sun is setting behind some tall grass. Sunrise grass mood.

Morning clouds. Free images of the morning. Use free images of the morning sky without any copyright restrictions.

A woman in a white dress is standing in the snow. Dancer woman winter, beauty fashion.

A woman in a white dress is standing in the snow. Dancer woman winter,...

A woman dancing in the snow / A woman in a white dress is standing in the snow / Public domain stock illustration.

A leaf laying on top of a pile of rocks. Mood atmosphere leaf

A leaf laying on top of a pile of rocks. Mood atmosphere leaf

A single leaf on the rocks / A leaf on a rock covered in pebbles / Public domain stock photo.

Environmental protection nature conservation ecology building. A city with tall buildings and trees in the foreground

Environmental protection nature conservation ecology building. A city ...

Architecture stock photograph: A city with a green tree and buildings / A city with tall buildings and trees in the foreground.

A couple of trees that are in the grass. Tree linden shadow.

A couple of trees that are in the grass. Tree linden shadow.

A large tree in a grassy field with a field in the background / A tree in a grassy field with a green field in the background / Public domain photo of forest, woods.

A colorful sunset over a field with trees. Spain mallorca balearic islands.

A colorful sunset over a field with trees. Spain mallorca balearic isl...

The sun sets over the hills / A purple sunset over the trees public domain stock photo.

A mountain covered in snow with a blue sky in the background. Matagalls mountains snow.

A mountain covered in snow with a blue sky in the background. Matagall...

A mountain covered in snow with a blue sky / A mountain covered in snow with a blue sky in the background public domain stock photo. A mountain covered in snow with a blue sky / A mountain covered in snow with... More

A close up of a corn cob with a face on it. Corn corn on the cob tinker, people.

A close up of a corn cob with a face on it. Corn corn on the cob tinke...

A corn cob with a face made from a doll head / A corn on the cob with a face made of marshmallows - public domain stock photo.

A duck floating on top of a body of water. Duck female bird, animals.

A duck floating on top of a body of water. Duck female bird, animals.

Stock photography: A duck is swimming in the water with leaves on the ground / A duck floating on top of a body of water.

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