NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
M3 star cluster and Comet Garradd. Mosaic infrared image of the M3 globular star cluster (upper left). In the lower right portion of the image there is a streak of orange light. This is most likely a human-made satellite, orbiting Earth. Just above the satellite in the image is Comet C/2008 Q3 (Garradd). This image spans an area on the sky about 7 times the size of the full Moon in portions of the constellations Bootes and Canes Venatici. Imaged by NASA's Wide-field Infrared Survey Explorer (WISE) telescope, on 2nd January 2010.
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