astroengine writes "Streaks of psychedelic colors show the passage of cities below the International Space Station (ISS), airglow in Earth's atmosphere and the circling motion of stars in this stunning new image from Expedition 31 Flight Engineer Don Pettit. Pettit created the image by combining 18 long-exposure digital images taken with a camera mounted inside the ISS on March 16, 2012. Because of the limitations of digital imaging sensors, multiple exposures are needed to get such an image." Link to Original Source
When bad men combine, the good must associate; else they will fall one by one,
an unpitied sacrifice in a contemptible struggle.
- Edmund Burke