NASA’s first crewed return to the vicinity of the Moon in more than half a century has slipped again, this time from an early February target to a no-earlier-than March launch window, after a hydrogen leak disrupted a critical fueling test.

Nasa has announced the schedule for the briefing on the upcoming SpaceX Crew-12 mission to the ISS, set for January 30. According to Nasa, SpaceX Crew-12 will carry four astronauts to the orbiting laboratory on a Crew Dragon spacecraft as part of Nasa’s Commercial Crew Program.