'Cosmic ghost' discovered by volunteer astronomer

When Yale astrophysicist Kevin Schawinski and his colleagues at Oxford University enlisted public support in cataloguing galaxies, they never envisioned the strange object Hanny van Arkel found in archived images of the night sky.

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<p><a href="http://www.physorg.com/news137157808.html">'Cosmic ghost' discovered by volunteer astronomer</a></p> <p>When Yale astrophysicist Kevin Schawinski and his colleagues at Oxford University enlisted public support in cataloguing galaxies, they never envisioned the strange object Hanny van Arkel found in archived images of the night sky.</p>