NASA Administrator Bill Nelson, who has led the agency into a new era of space exploration, is preparing to step down after four years at the helm. As his tenure comes to an end in January, Nelson ...

A holiday photo of NASA astronaut Suni Williams has drawn concern — as she and fellow astronaut Butch Wilmore’s return to Earth has been delayed a second time.

McAuliffe was 37 when she was killed, one of the seven crew members aboard the Challenger when the space shuttle broke apart on live TV on Jan. 28, 1986.

Boeing Starliner crew's return delayed by SpaceX mission NASA astronauts Wilmore, Williams stay on ISS until March SpaceX delay pushes back Crew-10 mission, altering schedules ...

BREVARD COUNTY, Fla. - A retired NASA astronaut is sounding the alarm on safety with the Artemis II mission. Earlier this ...

NASA Administrator Bill Nelson says he's optimistic the Trump administration will support the space agency's agenda.

SpaceX needs extra time to process the new spaceship that will finally relieve Butch Wilmore and Suni Williams of their space ...

Isaacman's appointment has been widely welcomed, though some concerns have emerged about his role as a prominent SpaceX client.

The crew launched to the ISS in June for a week-long mission but will end up spending an unplanned nine months in space.

Two NASA astronauts stranded in space have received a fresh blow before Christmas - their return home is delayed again. Americans Suni Williams and Butch Wilmore found themselves marooned on the ...

Miss America Madison Marsh - also a U.S. Air Force 2nd lieutenant - has reflected on her year in the role. A potential Top ...