Sunita "Suni" Williams had an unexpectedly long stay at the International Space Station after her capsule malfunctioned.

NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the ...

Nine months after being stranded aboard the International Space Station, Suni Williams and Butch Wilmore are finally back ...

NASA astronauts Suni Williams and Butch Wilmore are expected to return to Earth Tuesday afternoon after more than nine months ...

Suni Williams and Butch Wilmore returned to Earth on a SpaceX spaceship after their week-long flight turned into nine months ...

NASA’s AWE mission just released millions of gravity wave images from space, unveiling atmospheric forces that ripple through ...

Butch Wilmore and Suni Williams left the International Space Station after nine months in space, checking out with two other ...

NASA spaceman Don Pettit demonstrated the tricky task of sipping from a special mug in microgravity on the International ...

NASA and SpaceX made another attempt on Friday to send a crew up to the International Space Station (ISS) and begin the ...

NASA's SpaceX Crew-11 members stand inside the Space Vehicle Mockup Facility at the agency's Johnson Space Center in Houston.

A four-member crew, including NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore, left the ISS early Tuesday on ...

SpaceX Crew-10 mission successfully docked at the International Space Station, setting the stage to rescue two stranded NASA ...