NASA began a two-day practice countdown Saturday leading up to the fueling of its new moon rocket, a crucial test that will determine when four astronauts blast off on a lunar flyby. Already in quarantine to avoid germs,

With the wet dress rehearsal, essentially a critical fueling test of the Artemis 2 Space Launch System moon rocket, now back on Feb. 2, NASA said in a statement that it can no longer target Feb. 6 or Feb. 7, the first two days of its launch window. The Artemis 2 launch window originally ran from Feb. 6 to Feb. 10.

Video shows the NASA WB-57 plane touching down with a jolt, its wings bouncing as yellow fire and white smoke bursts from beneath it.

New simulations performed on a NASA supercomputer are providing scientists with the most comprehensive look yet into the maelstrom of interacting magnetic structures around city-sized neutron stars in the moments before they crash.

What role will F-15 jets play in the future of supersonic flight?

There's no telling what will gain traction on social media, but one conspiracy theory has gained enough traction for NASA to make a statement.