Four new crew members joined Butch Wilmore and Suni Williams on the space station before they depart. Just over a day after blasting off, a SpaceX crew capsule arrived at the International Space Station on Sunday, delivering the replacements for NASA’s two stuck astronauts.

SpaceX’s Dragon capsule successfully docked with the International Space Station early Sunday morning, carrying a new crew that would allow marooned astronauts Butch Wilmore and Suni Williams to finally return home.