Astronauts Patrick Forrester (left) and Steven Swanson participate in the STS-117 mission’s fourth and final spacewalk. Among other tasks, Forrester…
This view of Space Shuttle Discovery at the launch pad was taken while the STS-120 crew was at Kennedy Space…
NASA Administrator Michael Griffin (right) and Associate Administrator for Space Operations William Gerstenmaier inspect Space Shuttle Discovery after the landing…
Workers at NASA’s Lewis (now Glenn) Research Center observe as a commuter transport engine undergoes testing in the Icing Research…
View From Above Spirit on Mars This mosaic image taken by the navigation camera on the Mars Exploration Rover Spirit…
A mock-up of the Orion space capsule heads to its temporary home in a hangar at NASA’s Langley Research Center…
This artist concept illustrates how a massive collision of objects perhaps as large as the planet Pluto smashed together to…
Carrying the Expedition 12 crew, a Soyuz TMA-7 that launched a few days earlier from the Baikinour Cosmodrome in Kazakhstan…
Backdropped by the blackness of space, the Pirs docking compartment on the International Space Station was photographed by a crew…
Workers position the tail cone on the Space Shuttle Discovery in preparation for its return to NASA’s Kennedy Space Center…