Space Launch System Hot Fire Test Failed, NASA Looking Into Why

This Saturday, the most powerful rocket humans have ever built, the Space Launch System (SLS), was to conduct a hot fire test, the last in a longer series meant to validate the workhorse of the Artemis program. For reasons yet unknown, the test failed. The plan called for 700,000 gallons of cryogenic fuel to be loaded into the tanks of the rocket, and for the four RS-25 engines of the core stage to be fired at the same time. The test was ...