UC San Diego researchers have created a map of the microbes aboard the International Space Station; results could make space ...

Suni Williams and Butch Wilmore spoke in their first news conference since returning to Earth two weeks ago from an unexpectedly long I.S.S. stay that lasted more than nine months.

Fram2, a first-of-its-kind private mission to send four astronauts into polar orbit around Earth, is about to launch ...

NASA astronauts Suni Williams and Butch Wilmore, who returned to Earth earlier this month after spending nine months in space ...