NASA astronauts Peggy Whitson and Jack Fischer are preparing for a hastily-scheduled spacewalk to repair a faulty part on the International Space Station (ISS). The "contingency spacewalk," which ...

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

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

Two NASA astronauts are floating around in the void ... SEE ALSO: The first spacewalk was 50 years ago and was almost a disaster Whitson and Fischer's walk in space marks the 200th spacewalk ...

Williams have spent a total of 608 days in space across three missions, making her the second-most experienced NASA astronaut after Peggy Whitson, who holds the record for 675 days.

Chinese astronauts complete seven-hour spacewalk outside Tiangong space station Cai Xuzhe and Song Lingdong stepped outside of the space station with the help of third crew member, Wang Haoze.

Sunita Williams' extraordinary career in space exploration includes setting records for the longest spacewalk by a woman and becoming the second-longest-serving female astronaut. Initially ...

While terrifying, there's an overlooked NASA spacewalk which looks equally terrifying to untrained Earth-dwellers. In 1984, ...

surpassing the previous record of 60 hours and 21 minutes held by former astronaut Peggy Whitson. Williams broke this record on January 30. During her latest spacewalk with fellow astronaut Butch ...