The sun-approaching Comet ISON floats against a seemingly infinite backdrop of numerous galaxies and a handful of foreground stars in this amazing space wallpaper taken in April 2013 by NASA's Hubble Space Telescope. [Comet ISON Blazes with Distant Galaxies in Stunning Hubble Photo | Full Story]
(Image: © NASA, ESA, and the Hubble Heritage Team (STScI/AURA))
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