NASA officials on Monday started the two-day countdown to the Artemis II mission launch, which will send a crew of four ...

Add Yahoo as a preferred source to see more of our stories on Google. The cold weather didn’t stop NASA from calling employees to work Saturday night to begin the two-day countdown of a test run for ...

NASA's Artemis II mission should have soared in February, but was grounded by hydrogen fuel leaks. The leaks were fixed, but then a helium pressurization line became clogged, forcing a return to the ...

CAPE CANAVERAL, Fla. (AP) — NASA begins two-day countdown to return to the moon with Artemis II astronauts.