They will spend at least six months at the orbiting lab, swapping places with colleagues up there since March.

The SpaceX's Crew-11 Dragon capsule carrying four crew members from the United States, Japan and Russia docked early Saturday morning after their 15-hour long journey to the International Space Station.

An international crew of four astronauts launched toward the International Space Station from Florida on Friday aboard a SpaceX rocket, embarking on a routine NASA mission that could be the first of many to last a couple months longer than usual.