It Took 600 Years to Figure Out This Mysterious, Exploding Ancient Star
Korean royal astrologers saw a new star appear in the sky in 1437 AD, and it took 600 years for astronomers to find what they had seen, and explain why it appeared that night.
July 11, 2018 at 12:31AM
via Digg https://ift.tt/2J8q06N
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