NASA will wait at least another two days to launch its next space station crew, delaying the return of Starliner astronauts Barry "Butch" Wilmore and Sunita Williams a bit longer.

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.

SpaceX has launched Nasa's Crew-10 mission, with a Falcon 9 rocket sending four astronauts to the International Space Station from the Kennedy Space Center in Florida. The long-awaited crew of US, Japanese and Russian astronauts is expected to arrive to the station on Saturday night and will relieve Butch Wilmore and Suni Williams.