Live coverage: International crew lands in Kazakhstan

Top officials from NASA and Roscosmos, the Russian space agency, could decide soon to commit to keeping the International Space Station staffed and flying through at least 2028, four years after the research lab’s current retirement date.

Astronaut Shane Kimbrough and his two Russian crewmates — Soyuz MS-02 commander Sergey Ryzhikov and flight engineer Andrey Borisenko — undocked from the International Space Station and plunged back to Earth Monday, landing on the steppe of Kazakhstan to close out an extended 173-day mission.

A commercial Cygnus resupply craft that received a new corporate owner while berthed at the International Space Station — thanks to Northrop Grumman’s acquisition of Orbital ATK in June — departed the research complex Sunday. The supply ship was released by Canadarm 2 on the space station at 8:37 a.m. EDT (1237 GMT).