https://doi.org/10.1086/316199 • https://www.jstor.org/stable/10.1086/316199 ABSTRACT Published images of the Crab Nebula have been scanned and measured to derive ...
The Crab Nebula is the remnant of a supernova that appeared in 1054. "Historical records, including Chinese accounts, describe an unusually bright star appearing in the sky," said the KU researcher.
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What Is a Nebula?
Less than a hundred years later, Arabic and Chinese astronomers marveled at a supernova that created the Crab ... the nebula ...