British astronaut Tim Peake has completed the London Marathon — from 400 kilometres above the Earth.
Peake ran the 42 kilometre race harnessed to a treadmill aboard the International Space Station, with a simulation of the route through London's streets playing on an iPad.
He finished in three hours and 35 minutes. Guinness World Records says that's a record for the fastest marathon in orbit.
American astronaut Sunita Williams ran the Boston Marathon from space in 2007 in four hours and 24 minutes.
