
Space Shuttle Atlantis landing at 12:33 p.m. February 20, 2001, on the runway at Edwards Air Force Base, CA, where…

Space Shuttle Atlantis landed at 12:33 p.m. February 20 on the runway at Edwards Air Force Base, CA, where NASA's…

STS-98 Mission Specialist Thomas Jones, Pilot Mark Polansky, and Commander Kenneth Cockrell greet STS-92 Commander Brian Duffy, Dryden Center Director…

A U.S. Army CH-47 Chinook helicopter slowly lowers the X-40 sub-scale technology demonstrator to the ground under the watchful eyes…

Ground crewmen help guide the alignment of the X-40 technology demonstrator as the experimental craft is gently lowered to the…

The X-40 sub-scale technology demonstrator is suspended under a U.S. Army CH-47 Chinook cargo helicopter during a captive-carry test flight…

With a small stabilization parachute trailing behind, the X-40 sub-scale technology demonstrator is suspended under a U.S. Army CH-47 Chinook…

The X-40 sub-scale technology demonstrator and its U.S. Army CH-47 Chinook helicopter mothership fly over a dry lakebed runway during…

Before reaching Saturn, Cassini flew by Jupiter and observed the planet in tandem with Galileo. Cassini entered into orbit around…

The X-38 prototypes were intended to perfect a "crew lifeboat" for the International Space Station.