Watch live as an astronaut in need of medical care lands back on Earth after departing the International Space Station (ISS) with three crewmates in a Nasa medical evacuation on Thursday, 15 January.

The Crew Dragon spacecraft, with two Nasa astronauts, a Japanese crewmember, and a Russian cosmonaut aboard, undocked from the station at around 3:30 am IST.

The problem was first mentioned on January 7, when NASA canceled a planned spacewalk.