NASA astronaut Sunita “Suni” Williams, one of the two astronauts on an unintentionally extended stay aboard the International ...

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

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

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 — ...

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

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

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

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

The record-breaking spacewalk set a new women's record for total spacewalking time and saw the astronauts finally remove faulty radio communications hardware, among other tasks.

NASA and partners approved crew for Axiom Space’s private astronaut mission to the ISS, launching from the agency’s Kennedy Space Center ...

One of the astronauts stranded on the International Space Station since last June explained in a new interview that she is struggling to remember what it feels like to walk and lay down. Suni ...