PeteUplink's Universe
SN 1957D in M83 in 60 Seconds (by cxcpub) Over fifty years ago,...
8 Aug 2012, 22:22 UTC
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SN 1957D in M83 in 60 Seconds (by cxcpub)
Over fifty years ago, a supernova was discovered in M83, a spiral galaxy about 15 million light years from Earth.
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