In 1181, a supernova explosion appeared in the night sky for 185 days. Historical records show that the supernova, which some witnesses said looked like a “temporary star,” shined as bright as Saturn in the constellation Cassiopeia.
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In 1181, a supernova explosion appeared in the night sky for 185 days. Historical records show that the supernova, which some witnesses said looked like a “temporary star,” shined as bright as Saturn in the constellation Cassiopeia.
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