The four Crew-11 crew members joined seven other astronauts in the International Space Station early Saturday morning following a 15-hour journey from Florida.

On August 1, SpaceX launched its 11th crew rotation for NASA. The four will spend six to eight months on the International Space Station.

NASA and SpaceX's Crew-11 mission is made up of two U.S. astronauts, one from Japan and a Russian cosmonaut. They'll be aboard the International Space Station for six months conducting research.