Astronaut Chris Hadfield is many things: next in line to be commander of the International Space Station, father, poet, explorer, Canadian. He's also a talented photographer and a very prolific Twitter user. Hadfield allocates precious ISS bandwidth to tweet several times a day, posting breathtaking photographs of his view from the ISS. "The favorite pastime of astronauts is to be able to look out the window and look at the Earth from above," Hadfield said in a recent press conference. Through Twitter, he's able to share the best of that pastime directly with over 200,000 followers. Catch up on all the photos he's shared with this slideshow.