Two NASA astronauts will step outside the International Space Station on Thursday to take part in U.S. Spacewalk 93, NASA's ...

NASA astronauts Anne McClain and Nichole Ayers are set to begin their spacewalk on Thursday at 8 a.m. ET, exiting the space station for a planned six hours and 35 minutes. NASA will broadcast the ...

Veteran astronaut Don Pettit conducted hundreds of hours of research and captured over half a million photos during his ISS ...

"I didn't look too good because I didn't feel too good," Pettit told reporters during a press conference from NASA's Johnson ...

NASA is asking private industry and academia for ideas for new rescue services for its astronauts on Earth in the event of ...

NASA's oldest full-time astronaut is back home and doing well a week after wrapping up a seven-month space mission.

Billionaire Jared Isaacman, who has been to space twice and is Trump's pick to head NASA, could be one step closer to ...

A veteran NASA astronaut just back from the International Space Station believes the orbiting facility can operate well past ...

NASA astronaut Don Pettit celebrates his 70th birthday with a spectacular return from the International Space Station after ...

Astronaut Don Pettit, who has been at the International Space Station since September, is set to land Saturday in Kazakhstan ...

Following a seven-month stay aboard the International Space Station (ISS), NASA astronaut Don Pettit and two Russian ...

Pettit even got to celebrate his birthday twice. Due to the time zone difference, it was still April 20 when Pettit flew back ...