Canadian astronaut Chris Hadfield has been doing everything he can to be our planet's one-man ambassador to the universe over the last couple months, making cute videos explaining what happens when you brush your teeth or cry in space. He's also been tweeting lots of beautiful photos of cities across the Earth from the International Space Station. Last night, he dropped the gem you can see above: "Tonight's Finale: New York City, incredibly clear, before the trees have filled with leaves." Below, he explains how he is able to get such incredible "Spaceagram" photos.