This claim was, in fact, true. McCandless was, indeed, the first astronaut to perform an untethered spacewalk on Feb. 7, 1984 ...

"To maintain medical privacy and to let our processes go forward in an orderly manner, this is all we're going to say about ...

NASA doctors are frantically trying to help stranded astronaut Sunita Williams pack on the pounds after she has suffered a ...

NASA astronaut Matthew Dominick enjoys a fresh delivery of orange and other fruit on the International Space Station during ...

NASA is assuring the public that a Massachusetts astronaut is in good health after recent photos of the woman sparked ...

"From that point forward, I always wanted to be an astronaut," said Moghbeli. Now after accomplishing her dream of living in ...

Be wowed by a beautiful space view of star trails captured in a long-exposure image from the International Space Station.

Health concerns are growing for the Boeing Starliner mission astronauts who are still on the International Space Station.

Astronaut Sunita Williams, along with her colleagues Butch Wilmore, Nick Hague and Don Pettit, cast their votes for the U.S.

S aturday Night Live is, first and foremost, supposed to be a funny TV show — but it was difficult to laugh at most of its ...

Astronaut and CU Boulder alum Sarah Gillis will speak at CU Boulder from 3:30 to 5 p.m. Monday at Fiske Planetarium, 2414 ...

Emmy Rossum and Zoë Winters star in a new Off Broadway play that’s a climate disaster drama cohabiting with a domestic soap ...