SpaceX's Falcon 9 rocket lifted off at 7:03 p.m. ET (2303 GMT) from NASA's Kennedy Space Center in Florida carrying four astronauts who will replace Wilmore and Williams, both of whom are veteran NASA astronauts and retired U.

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,