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CfA Press Releases Weekly Science Updates 2013 2012 2011 2010 2009 2008 2007 2006 Other News Features All News	Weekly Science Update Where do Supernovae Come From? A false-color X-ray image of the type Ia supernova remnant, Tycho. Credit: NASA/CXC/Rutgers/J.Warren & J.Hughes Low Resolution Image (jpg) Back to Science Update
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