All the Cities Photographed From the International Space Station

Chris Hadfield is the 35th commander of the International Space Station, the first Canadian to walk in space and a relentless demon of photography.

Since boarding the spacecraft in December, he's fed his half-million Twitter followers a steady diet of pupil-popping images taken from out his window as he speeds along at 17,239 m.p.h., such as a monstrous cyclone eating Madagascar, glacial runoff "burping" into the Atlantic and what he rightfully calls "one of the coolest space sights on Earth, the Richat Structure of Mauritania." Hadfield is so obsessed with documenting the planet that the only thing that makes him angry in space is having to go to bed: "My resolution has been to make the absolute most of it -- to spend as little time sleeping as I can," he recently told reporters.