Space Newsspace history and artifacts articlesMessagesspace history discussion forumsSightingsworldwide astronaut appearancesResourcesselected space history documents
: After a hydrogen leak and other issues cropped up during a test of the mission's Space Launch System (SLS) rocket, NASA delayed the liftoff of Artemis II, its first crewed flight to the moon in over 50 years. The "wet dress rehearsal" practiced the pre-launch activities, beginning about 49 hours prior to the countdown reaching T-minus 0. Another wet dress will be held before an official launch date is targeted, no earlier than March 6.