NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...

The most powerful rocket system ever constructed is headed for its next test — using a version of the vehicle that has been at the center of a series of explosive missteps and failures. SpaceX said it ...

Momentus announced Oct. 9 two new contracts with NASA to carry payloads to test advanced technologies on its Vigoride ...

NASA's experimental X-43A didn't have a pilot and couldn't fly independently, but its blisteringly high speeds showed that ...

SpaceX is expected to fire the Ship’s engines on Wednesday or Thursday. It’s already tested the Super Heavy engines, so if the Ship’s static fire goes well and no anomalies occur, SpaceX will be ready ...

This was the last flight before the company begins test-launching a new version of the giant rocket outfitted with more ...

As SpaceX's Starship successfully completes its 11th test flight, take a look at the world's largest rockets ever built.