Countdown clocks began ticking Saturday for the maiden launch of NASA new Space Launch System rocket Monday on a long-awaited mission to send an unpiloted Orion crew capsule around the moon and back.

HUNTSVILLE, Ala. (WHNT) — The core stage of NASA’s largest-ever rocket is on the water, headed from a New Orleans facility to Kennedy Space Center. The stage is the backbone of the Space Launch System ...

CAPE CANAVERAL—After more than 30 countdown simulations, two core-stage Green Run static engine firings and four launchpad wet dress rehearsals, countdown clocks at Kennedy Space Center were scheduled ...

Fresh off repairs at the launch pad in Florida, United Launch Alliance engineers restarted the countdown overnight for the third attempt to send an Atlas V rocket and Boeing’s Starliner spacecraft on ...