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symbo symbo
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The light from the most recent supernova that was visible to the unaided eye arrived at Earth in
   A)  1604 A.D.    B)  1054 A.D.    C)  1987 A.D.    D)  1572 A.D.
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Discovering the Universe

Discovering the Universe


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discovererdiscoverer
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symbo Author
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Thanks
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Smart ... Thanks!
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