The International Space Station performs a pass low across the southern sky on February 10, 2013, with Canadian astronaut Chris Hadfield on board. This is a stack of 2 4-minute exposures, one with the ISS — that one was used for the foreground. The second exposure has the foreground masked out to minimize blurring but helps smooth noise in the sky. Taken with the Canon 5D MkII at ISO 800 and 15mm lens at f/3.5.
The Amazing Sky 