Artemis 1 will be the first test flight of the agency's new Space Launch System megarocket and the Orion crew capsule. The SLS rocket will launch the uncrewed Orion spacecraft on an approximately 42-day mission, during which it will orbit the moon before returning to Earth. 

Artemis 1 is currently scheduled to launch no earlier than Friday, Sept. 23, at 6:47 a.m. EDT (1047 GMT) from Launch Complex 39B at NASA's Kennedy Space Center in Florida. A backup day is available on Sept. 27. Check back here for live updates on the mission.