Four astronauts are about to board a rocket to leave the planet. Update for 7:50 pm ET: SpaceX called off its planned launch ...

NASA astronaut Don Pettit captured this stunning long-exposure view of Earth and stars from space at night from the ...

NASA astronauts Butch Wilmore and Suni Williams are back on Earth after an unexpected 286-day mission in space. They splashed down in the Gulf of Mexico on Tuesday evening, ending a journey that was ...

NASA astronauts Suni Williams and Barry "Butch" Wilmore returned to Earth on Tuesday after spending some nine months in space ...

NASA astronauts Sunita Williams and Butch Wilmore have finally returned to Earth after spending nine months in space on a ...

NASA astronauts Sunita Williams and Butch Wilmore finally returned back to earth onboard SpaceX Dragon spacecraft from the ...

NASA astronauts Butch Wilmore and Suni Williams ended up spending 286 days in space — 278 days longer than anticipated when ...

NASA astronauts Sunita Williams and Butch Wilmore are returning to Earth after a prolonged mission on the ISS, initially ...

NASA astronauts Butch Wilmore and Sunita Williams are set to return to Earth after a nine-month mission on the ISS due to ...

Astronauts in space experience significant muscle atrophy and bone density loss due to the absence of Earth's gravity.

SpaceX launched yet another batch of its Starlink internet satellites to orbit from Florida this afternoon (March 18). A ...