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English: An artist's impression of the optical and X-ray emission surrounding the "Black Widow" pulsar B1957+20
Date
Source http://chandra.harvard.edu/photo/2003/b1957/b1957_ill1.jpg
Author NASA/CXC/M.Weiss

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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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27 February 2003

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current19:18, 16 July 2010Thumbnail for version as of 19:18, 16 July 2010792 × 612 (187 KB)ScienceApologist{{Information |Description={{en|1=An artist's impression of the optical and X-ray emission surrounding the "Black Widow" pulsar B1957+20}} |Source=http://chandra.harvard.edu/photo/2003/b1957/b1957_ill1.jpg |Author=NASA/CXC/M.Weiss |Date=2003-02-27 |Permis

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