ESA astronaut Tim Peake (@astro_timpeake) took this photograph over the west coast of Canada from the International Space Station on Dec. 31, 2015, and shared it with his Twitter followers on Jan. 5, writing, "I was lucky enough to fly a helicopter in these Rocky Mountains once – I’m a bit higher this time! #Principia" via NASA http://ift.tt/1mGs2A2
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