A group of at least 13 tiny spacecraft are getting a ride to space aboard the most powerful rocket NASA has ever built. The main goal of the space agency's first flight of the Space Launch System ...

It was about one in the morning, four hours after an explosion tore through the Apollo 13 spacecraft on its way to the moon, ...

Eventually, the company wants to have a separate station in orbit. As a NASA astronaut for 20 years, Michael Lopez-Alegria conducted 10 spacewalks and set a U.S. record for total spacewalking time ...