Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to number four overall.

NASA astronaut Suni Williams set a female spacewalk record after venturing outside the International Space Station with ...

Two NASA astronauts, originally expecting a short stay aboard the International Space Station (ISS), have now been in orbit ...

NASA astronauts Suni Williams and Butch Wilmore completed a spacewalk Thursday while awaiting their delayed return to Earth.

Suni Williams has opened up on what it's like being stranded in space for so long and the affects it has had on her body ...

Through amateur — or “ham”— radio communication, sixth graders at Pine View spoke to an astronaut aboard the International ...

BEIJING -- As China's Shenzhou XIX mission reaches its halfway, the three astronauts aboard the Tiangong space station, ...

The four American astronauts aboard the ISS, including the Boeing Starliner crew, spoke to USA TODAY in an exclusive ...

Astronauts Butch Wilmore and Suni Williams will conduct a spacewalk outside the International Space Station to swab the ...

The main reason is that water is an incredibly precious resource in space. So valuable that even urine cannot be thrown away. It is recycled, purified, and used again. This means that a regular ...

Astronaut stuck on International Space Station for months just broke the record for total spacewalk time by a woman - Sunita ...

So the return of Suni Williams and Butch Wilmore has never been a political story—until this week. And it's a good thing that ...