SpaceX successfully completed the first step on Sunday to rescue two astronauts stranded on the International Space Station, but it won’t bring the pair home for another five months.

Two astronauts stuck at the International Space Station (ISS) on Sunday welcomed the SpaceX capsule that will shuttle them home from a longer-than-anticipated mission. The big picture: NASA astronauts Barry "Butch" Wilmore and Sunita "Suni" Williams had to extend their stay by months after technical issues prevented them from returning home aboard the Boeing Starliner craft that brought them there.

SpaceX’s Crew Dragon capsule arrived safely at the International Space Station on Sunday, where it will eventually ferry the two Boeing Strainer astronauts who have been stuck in space for months