NASA / JSC / SCIENCE PHOTO LIBRARY NASA / JSC / SCIENCE PHOTO LIBRARY
ISS and star trails. Time exposure image of star trails and the Earth (bottom) taken from the International Space Station (ISS). This is a composite image of several short exposures combined to give an exposure equivalent to approximately 15 minutes. Air glow (green) is seen over Earth. Image taken by astronaut Don Pettit on 17th May 2012, during Expedition 31.
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