Since those early steps, extravehicular activity has helped provide the solutions to many problems that astronauts face in ...

NASA astronaut Sunita Williams set multiple records as she returned from a nine-month space stay, becoming the woman to do ...

Astronauts Suni Williams and Butch Wilmore, who were stranded at the International Space Station for nine months after they ...

The two, along with fellow NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov, splashed down in the ...

Russian cosmonauts Oleg Kononenko and Nikolai Chub were assigned on the Expedition 70 spacewalk to check up on an external ...

NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore are finally back on Earth. The two spent more than eight ...

On Tuesday, two NASA astronauts who had been in orbit since June, Suni Williams and Butch Wilmore, splashed down in calm, ...

As NASA astronauts Butch Wilmore and Suni Williams return to Earth after an unplanned nine months in space, here's how they ...

A SpaceX craft carrying Barry Wilmore and Sunita Williams left the International Space Station early Tuesday morning.

With nine spacewalks, NASA astronaut Sunita Williams set a new record for the most spacewalking hours by a female astronaut.

Nine months is a long time to be in orbit. But Butch Williams and Suni Wilmore aren't alone in facing extraordinary ...

Dr. Bernard Harris Jr.’s historic spacewalk sets the stage in his latest book, meant to be used as a guide and inspiration ...