When the astronauts stranded at the International Space Station were pictured wearing Santa hats next to a tiny Christmas ...

While privately funded programs to develop space vehicles and execute extraterrestrial missions have been in play for years, ...

Pictures from the International Space Station do not disappoint, from comets and northern lights to giant hurricanes and ...

Here's why NASA astronauts Suni Williams and Butch Wilmore are stuck, but not stranded, at the International Space Station ...

The space station sees 16 sunrises and 16 sunsets every 24 hours. So how will the crew there know when it's 2025?The Latest ...

NASA astronauts Butch Wilmore and Suni Williams have been stuck in space for months longer than expected, and will not return ...

Marine Corps Lt. Col. Jasmin Moghbeli has flown more than 150 combat missions and deployed to Afghanistan in 2009 and 2010.

NASA astronauts Suni Williams and Butch Wilmore will be spending the holidays aboard the International Space Station, with ...

Cai Xuzhe and Song Lingdong, part of China's three-person Shenzhou 19 mission, spent more than nine hours spacewalking ...

Smart undershirts and AI algorithms will help keep astronauts healthy on NASA's planned Lunar Gateway moon-orbiting space ...

NASA astronauts Butch Wilmore and Sunita Williams will spend at least nine consecutive months aboard the International Space Station after their Boeing Starliner spacecraft returned to Earth empty.

Two NASA astronauts stranded in space have received a fresh blow before Christmas - their return home is delayed again.