Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to No. 4 overall.

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

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

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 ...

Elon Musk says Donald Trump has asked SpaceX to rescue two astronauts who have been in space for more than seven months — ...

Astronauts on board China's "heavenly palace" space station have demonstrated a new way of making rocket fuel products and ...

President Trump said Tuesday that he “asked Elon Musk and @SpaceX to ‘go get’ the 2 brave astronauts who have been virtually ...

President Donald Trump posted to Truth Social that he's asked Elon Musk and SpaceX to retrieve two astronauts he says were ...

As billions of people worldwide celebrate the Lunar New Year, astronauts aboard China's Tiangong space station sent home a ...

Despite the statement from President Trump, NASA had already scheduled the astronauts' return for late March or April.

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

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