The latest test of a next-generation rocket booster for NASA’s Artemis moon program ended with a violent structural failure, abruptly cutting short what was supposed to be a carefully choreographed demonstration of future launch hardware.

NASA has completed over 100 cold-flow tests of a full-scale nuclear rocket reactor prototype, demonstrating stable hydrogen flow and control.

NASA is backing a radically different way to reach space, one that swaps towering rockets for a ground-based launcher that whips payloads to orbital speeds before they ever see a drop of fuel. The concept, often described as a giant space catapult, is ...

NASA's Space Shuttle Program, which ran from 1981 to 2011, was a complex and ambitious project that pushed the boundaries of space exploration, but was marred by two tragic accidents during the shuttle era.

CAPE CANAVERAL, Fla. -- NASA's giant new moon rocket moved to the launch pad Saturday in preparation for astronauts' first lunar fly-around in more than half a century. The out-and-back trip could blast off as early as February. The 322-foot rocket began ...