From National Geographic:
10. Supernova Creates "Ribbon" in Space
Like a ribbon trailing from a parade float, a streamer of hydrogen gas seems to waft across the stars in an image taken by the Hubble Space Telescope.
Released in July, this festive shot of a supernova remnant was National Geographic News's tenth most viewed space photo of 2008.
Bright stripes within the ribbon—which is actually the shock wave from the stellar explosion—appear where the wave is moving edge-on to Hubble's line of sight.
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