There were emotional scenes of smiling astronauts hugging and embracing in zero gravity on the International Space Station on Sunday after a replacement crew docked with the orbital outpost – a step towards the return home of two astronauts who have been stranded for more than nine months.
A SpaceX capsule delivered four astronauts to the ISS in a Nasa crew-swap mission that will allow the pair of stuck astronauts, Barry “Butch” Wilmore and Suni Williams, to return home after nine months on the orbiting lab.
