Trump aims to send a crew to Mars by the end of his term, which Musk calls 'doable.' Astronauts question the time frame but said a flight would soon be possible ...

An enigmatic Japanese billionaire picked 10 artists to fly to the moon, only to pull the plug. Now they’re figuring out ...

Butch Wilmore and Suni Williams, who only recently returned after a nine-month stint in space, discussed their return to ...

SpaceX chalked up another human spaceflight Monday night, taking four civilians on a trip around the Earth that has never ...