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Last updated on May 23, 2013 at 19:58 EDT
NASAs Fermi Finds Gamma-ray Galaxy Surprises
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NASA's Fermi Finds Gamma-ray Galaxy Surprises

January 10, 2013
This artist's concept shows the core of an active galaxy, where a feeding supermassive black hole drives oppositely directed particle jets. Credit: ESA/NASA/AVO/Paolo Padovani