The crew-swap mission will enable NASA’s Butch Wilmore and Suni Williams to return home from the International Space Station.

SpaceX scrubbed the launch of a relief crew on Wednesday night, delaying the handoff for NASA astronauts who have been awaiting a return trip to Earth.

The Starliner saga is a step closer to its end with the launch of a SpaceX vehicle that will relieve the astronauts who flew on the Boeing spacecraft.

The replacements for NASA’s two stuck astronauts launched to the International Space Station on Friday night, paving the way for the pair’s return after nine long months. Butch Wilmore and Suni Williams need SpaceX to get this relief team to the space station before they can check out.

NASA will livestream the launch Friday night of Crew-10, which will in part replace the Starliner astronauts at the International Space Station.

NASA and SpaceX on Friday launched a long-awaited crew to the International Space Station that opens the door to bringing home U.S. astronauts Butch Wilmore and Suni Williams, who have been stuck on the orbital lab for nine months.