File:Witch head nebula.jpg

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English: As the name implies, this reflection nebula associated with the star Rigel looks suspiciously like a fairytale crone. Formally known as IC 2118 in the constellation Orion, the Witch Head Nebula glows primarily by light reflected from the star. The color of this very blue nebula is caused not only by blue color of its star, but also because the dust grains reflect blue light more efficiently than red. A similar physical process causes Earth's daytime sky to appear blue.
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Source http://www.nasa.gov/multimedia/imagegallery/image_feature_1209.html
Author NASA/STScI Digitized Sky Survey/Noel Carboni

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current11:39, 24 September 2012Thumbnail for version as of 11:39, 24 September 20123,194 × 3,227 (4.41 MB)Stas1995 (talk | contribs)User created page with UploadWizard

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