Lunar Orbiter 2 - Microgravity, Space Shuttle Program, NASA
Lunar Orbiter 2 oblique northward view towards Copernicus crater on the Moon shows crater wall slumping caused by soil liquefaction following the impact that formed the crater. The crater is about 100 km in dia... More
Microgravity, Space Shuttle Program, NASA
Ground shaking triggered liquefaction in a subsurface layer of water-saturated sand, producing differential lateral and vertical movement in a overlying carapace of unliquified sand and slit, which moved from r... More
Microgravity, Space Shuttle Program, NASA
An automobile lies crushed under the third story of this apartment building in the Marina District after the Oct. 17, 1989, Loma Prieta earthquake. The ground levels are no longer visible because of structural ... More
Microgravity, Space Shuttle Program, NASA
Sand boil or sand volcano measuring 2 m (6.6 ft.) in length erupted in median of Interstate Highway 80 west of the Bay Bridge toll plaza when ground shaking transformed loose water-saturated deposit of subsurfa... More
Microgravity, Space Shuttle Program, NASA
Astronaut Carl Walz installs Mechanics of Granular Materials (MGM) test cell on STS-79. Sand and soil grains have faces that can cause friction as they roll and slide against each other, or even cause sticking ... More
Microgravity, Space Shuttle Program, NASA
One of three Mechanics of Granular Materials (MGM) test cells after flight on STS-79 and before impregnation with resin. Note that the sand column has bulged in the middle, and that the top of the column is sev... More
Microgravity, Space Shuttle Program, NASA
Astronaut Jay Apt installs Mechanics of Granular Materials (MGM0 test cell on STS-79. Sand and soil grains have faces that can cause friction as they roll and slide against each other, or even cause sticking an... More
Microgravity, Space Shuttle Program, NASA
A test cell for the Mechanics of Granular Materials (MGM) experiment is shown in its on-orbit configuration in Spacehab during preparations for STS-89. The twin locker to the left contains the hydraulic system ... More
Microgravity, Space Shuttle Program, NASA
On STS-89, three Mechanics of Granular Materials (MGM) test cells were subjected to five cycles of compression and relief (left) and three were subjected to shorter displacement cycles that simulate motion duri... More
Microgravity, Space Shuttle Program, NASA
CT scans of the specimens on STS-79 reveal internal cone-shaped features and radial patterns not seen in specimens processed on the ground. The lighter areas are the densest in these images. CT scans produced r... More
Microgravity, Space Shuttle Program, NASA
CT scans of the spcimens on STS-79 reveal internal cone-shaped features and radial patterns not seen in specimens processed on the ground. The lighter areas are the densest in these images. CT scans produced ri... More
Microgravity, Space Shuttle Program, NASA
A test cell for Mechanics of Granular Materials (MGM) experiment is shown approximately 20 and 60 minutes after the start of an experiment on STS-89. Sand and soil grains have faces that can cause friction as t... More
Microgravity, Space Shuttle Program, NASA
CT scans of the spcimens on STS-79 reveal internal cone-shaped features and radial patterns not seen in specimens processed on the ground. The lighter areas are the densest in these images. CT scans produced ri... More
Microgravity, Space Shuttle Program, NASA
CT scans of the spcimens on STS-79 reveal internal cone-shaped features and radial patterns not seen in specimens processed on the ground. The lighter areas are the densest in these images. CT scans produced ri... More
Microgravity, Space Shuttle Program, NASA
Astronaut James Reilly uses a laptop computer monitor the Mechanics of Granular Materials (MGM) experiment during STS-89. Sand and soil grains have faces that can cause friction as they roll and slide against e... More
CAPE CANAVERAL, Fla. - Standing under space shuttle Atlantis at the Sh...
CAPE CANAVERAL, Fla. - Standing under space shuttle Atlantis at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, astronaut Rick Mastracchio, left, a veteran of two space shuttle flights, ... More