A massive streak of white, aurora-like light recently appeared in the night sky above several U.S. states after a Chinese rocket released half a dozen satellites into orbit. The light show was ...

The Artemis II mission, which was initially supposed to launch on Feb. 8, has now been delayed by at least a month after NASA found a hydrogen leak while fuelling the tank. The first Artemis mission ...

NASA’s first crewed moon mission in decades was delayed as its engineers grapple with an all-too-familiar rocket problem: hydrogen leaks. Fixing the issue is even trickier than it may seem.