US astronaut Scott Kelly looks back on record-breaking year on ISS

US astronaut Scott Kelly held his final press conference from the International Space Station (ISS) on 25 February, telling reporters that the ISS is a "magical" place, but that he'll be glad to get back to Earth. Kelly and Russian cosmonaut Mikhail Kornienko are finishing a 340-day mission before returning to Earth next week. Kelly told reporters that he hopes the legacy of their work will be to enable others to go to Mars.