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

NASA and SpaceX were on track to launch NASA's Crew-10 astronauts to the space station Friday night in a mission that will also aim to return Starliner astronauts Suni Williams and Butch Wilmore.

Now that SpaceX ground teams have “successfully flushed a suspected pocket of trapped air” in the ground support hydraulics system used for the clamp arm supporting the Falcon 9 rocket, there will be another attempt to launch the Crew-10 mission to the ISS tonight,