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.

Two astronauts relinquished their seats on a four-person spacecraft so that their colleagues could return to Earth from the ISS, where they’ve been stuck since June.