Watch: Space crew returns to Earth after longest stay on ISS
Two Russian cosmonauts, Oleg Kononenko and Nikolai Chub, have left the International Space Station, after breaking the record for the longest stay at 374 days.
Kononenko also now holds the record for the longest cumulative time in space at 1,111 days in orbit.
Nasa astronaut Tracy Dyson was also aboard the Soyuz space capsule headed for Kazakhstan after spending six months on the station.
Suni Williams, one of the Nasa astronauts currently stranded on the ISS after arriving there on a Boeing Starliner spacecraft, rang the bell for their departure.