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NASA ordered the six crew members at the International Space Station to "shelter in place" Monday when space debris came tumbling toward the station's orbit.

Technological triumph or tragic mistake? NASA's final space shuttle launch sparks a debate over spaceflight's future.

NASA says a newly discovered asteroid will have a close encounter with Earth today, but there's no need to worry.

In the final move of its kind, NASA's space shuttle Atlantis was photographed earlier this month slowly advancing toward Launch Pad 39A, where it is currently scheduled for a July launch to the International Space Station. The mission, designated STS-135, is the 135th and last mission for a NASA space shuttle. Atlantis and its four-person crew will be carrying, among other things, the Multi-Purpose Logistics Module Raffaello to bring key components and supplies to the ISS.

Endeavour commander Mark Kelly and wounded U.S. Rep. Gabrielle Giffords reunited Thursday evening after more than two weeks apart and they weren't ...

NASA does all kinds of stuff. They build space robots. They send up satellites. They study the oceans. But come on - who're we kidding? When most people think of NASA, they think of manned space flight. The space shuttle. But after 30 years, and 135 flights, NASA has decided to close down the space shuttle program.

Two astronauts made history Friday as the final spacewalkers of NASA's 30-year shuttle program.

A NASA spacecraft will reach out and touch an asteroid and send pieces back to Earth.

NASA awaiting images after Soyuz capsule landing.

U.S. space shuttle Endeavour blasted off on Monday on the next-to-last flight in NASA's shuttle program, carrying a potentially revolutionary physics experiment to the International Space Station.