A SpaceX capsule delivered four astronauts to the International Space Station early on Sunday in a NASA crew-swap mission that will allow a pair of stuck astronauts, Butch Wilmore and Suni Williams, to return home after nine months on the orbiting lab.

SpaceX's Crew-10 mission has successfully launched from NASA's Kennedy Space Center in Florida at 7:03PM Eastern on March 14. NASA astronauts Anne McClain and Nichole Ayers, Japan Aerospace Exploration Agency's Takuya Onishi and Roscosmos cosmonaut Kirill Peskov are onboard and will join the ISS crew after the spacecraft docks with the orbiting lab at 11:30PM Eastern time on March 15.