Barry Wilmore and Sunita Williams were stranded on the ISS for 286 days. They now struggle with muscle and bone loss.

Astronauts rely on advanced oxygen systems in space, with backup supplies ensuring survival in emergencies. If oxygen fails, astronauts use emergency tanks or return to the spacecraft. Life-support ...

Astronauts depend on oxygen tanks while in space, with backup systems in place to prevent emergencies. In the event of an ...

Making spacesuits compatible with different spacecraft could protect astronauts during an emergency evacuation.

But the first woman in space was actually a Soviet cosmonaut who beat out 400 applicants to pilot the Vostok 6 spacecraft in ...

Spending months in space weakens muscles, bones and the heart, leaving astronauts facing a long road to recovery back on ...

NASA astronauts Butch Wilmore and Suni Williams aren't the first to run late in space, and their 9½-month mission on the ...

NASA astronauts Sunita Williams and Butch Wilmore have returned to Earth after their Crew 9 Dragon Spacecraft splashdown ...

Nearly 30 former NASA astronauts have signed a letter endorsing Jared Isaacman as the agency’s next administrator, calling on ...

NASA's Sunita "Suni" Williams and Barry "Butch" Wilmore are home after being stranded in space for nine months. Find out what ...

NASA has revealed a shocking new plan for its future missions to space just as astronauts Sunita Williams and Butch Wilmore ...