A Russian cosmonaut and his two NASA crewmates undocked from the International Space Station and landed in Kazakhstan early Friday, returning to an unfamiliar world in the grip of a pandemic that will force them to extend the social isolation they were hoping to end.

Russian commander Sergey Ryzhikov, flight engineer Sergey Kud-Sverchkov, and NASA astronaut Kate Rubins climbed into their Soyuz landing craft and undocked from the International Space Station at 9:34 p.m. EDT Friday (0134 GMT Saturday). The trio touched down on the barren steppes of Kazakhstan at 12:56 a.m. EDT (0456 GMT) to wrap up six months in orbit.

Russian Soyuz commander Alexander Misurkin and two U.S. astronauts — flight engineers Mark Vande Hei and Joe Acaba — lifted off Tuesday from the Baikonur Cosmodrome in Kazakhstan. The trio began their six-hour journey to the International Space Station with a launch aboard a Soyuz rocket at 2117 GMT (5:17 p.m. EDT), and docking occurred at 0255 GMT (10:55 p.m. EDT).