NASA and SpaceX on Friday will count down to a long-awaited crewed rocket launch that will allow them to bring home U.S. astronauts Butch Wilmore and Suni Williams, who have been stuck on the International Space Station for nine months.

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,

When is launch day for NASA's SpaceX Crew-10 astronauts? After an initial launch attempt that ended in a scrub minutes before liftoff, Crew-10 will try again on Pi Day. A hydraulic ground issue at launch pad 39A sparked a scrub of Crew-10's Falcon 9,