A hydrogen fuel leak interrupted the launch countdown for NASA's new moon rocket early Monday morning, further delaying the operation that was already running late because of a thunderstorm offshore.

Such "countdown demonstration tests" have traditionally taken place shortly before launch with the rocket and crew ship ...

The four astronauts preparing to fly around the Moon on Artemis II have now practiced their biggest moment short of launch ...

The 24-hour countdown for the launch of LVM3-M6 rocket, which will carry a new generation US communication satellite, ...

Thursday’s launch has been scrubbed. Officials said they will make another attempt to launch the rocket at 1:37 p.m. Friday. The rocket will carry the NROL-70 mission for the National Reconnaissance ...

United Launch Alliance teams have set a new target date for the final launch of their Delta IV heavy rocket after a previous attempt was scrubbed late in the countdown last week. The rocket launch was ...

CAPE CANAVERAL, Fla. (WHNT) — United Launch Alliance’s countdown is on for the U.S. Space Force’s Space Systems Command mission using a primarily Alabama-made rocket. The rocket used in the USSF-106 ...

XCOR Aerospace, Inc. has announced that the company will conduct multiple flight tests of the EZ-Rocket during the weekend of October 6-9 at the inaugural Countdown to the X PRIZE CUP in New Mexico.

CAPE CANAVERAL, Fla. (AP) — NASA pressed toward the launch of a new moon rocket Monday to put a crew capsule into lunar orbit for the first time in 50 years, after a leak reappeared in the same place ...