America’s oldest serving astronaut Dan Pettit has returned to Earth on his 70th birthday. The Soyuz MS-26 spacecraft carrying Pettit and his Russian crewmates Alexey Ovchinin and Ivan Vagner made a parachute-assisted landing in Kazakhstan’s steppe at 06:20 local time (01:20 GMT) on Sunday. They spent 220 days on board the International Space Station (ISS),...