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

A SpaceX crew capsule docked at the ISS on Sunday, delivering replacements for two NASA astronauts stranded in space since last June. The four newcomers from the U.S., Japan, and Russia will take over,

NASA and SpaceX launched NASA's Crew-10 astronauts to the International Space Station on Friday night in a mission that will also aim to return Starliner astronauts Suni Williams and Butch Wilmore.