National Aeronautics and Space Administration - NASA

"I told you so, but no one wanted to listen to me. NASA's DART rocket lifted off today! It's going to do a little BAYHEM in...

If all goes well, the boxy, 1,200-pound craft will slam head-on into Dimorphos, an asteroid 525 feet across, at 15,000 mph.

U.S. officials on Monday accused Russia of destroying an old satellite with a missile in what they called a reckless and...

U.S. officials say a Russian weapons test created the space junk that is now threatening the seven astronauts aboard the...

A SpaceX rocket carried four astronauts into orbit Wednesday night, including the 600th person to reach space in 60 years.

Their homecoming paved the way for SpaceX's launch of their four replacements as early as Wednesday night.

The series about the original seven astronauts who flew for Project Mercury will stream in late 2020.

Officials announced the postponement less than 24 hours before Mark Vande Hei -- a 54-year-old retired Army colonel -- was...

The 8,200-pound shipment includes fresh apples, tomatoes and kiwi, along with a pizza kit.

Applicants have to be between 30 and 55, in good physical health with no dietary issues and not prone to motion sickness.