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 ...

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

As it flew up toward the International Space Station last summer, the Starliner spacecraft lost four thrusters. A NASA ...