The Artemis II mission was set to launch four astronauts on a trip around the moon no earlier than Sunday, but engineers detected leaking hydrogen at the base of the rocket.

The Artemis II countdown rehearsal unfolded amid record cold on Florida’s Space Coast, adding challenges as teams prepared for the historic flight.

NASA says it is now targeting a March launch for its new moon rocket after encountering fuel leaks during a crucial test

The crew is scheduled to launch no earlier than 6 a.m. EST on Feb. 11 from Cape Canaveral, Florida, aboard a SpaceX Dragon spacecraft powered by a Falcon 9 rocket. Backup launch times are set for Feb. 12 and Feb. 13 if needed.

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.

B NASA recently put the finishing touches on a telescope set to become the agency’s flagship infrared space telescope, but it hasn’t come cheap. The total cost for develop

NASA has begun a two-day practice countdown for its first moonshot with astronauts in 53 years. The dress rehearsal that started Saturday night will culminate with the fueling of the space agency's new moon rocket.

NASA has released an animation detailing the Artemis II mission, a crewed test flight that will validate the Space Launch System and Orion spacecraft for deep-space travel beyond low Earth orbit.