Astronomers resolve centuries-old thriller of supernova noticed in 1181

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Enlarge / Hubble Area Telescope mosaic picture of the Crab Nebula, a six-light-year-wide increasing remnant of a star’s supernova explosion in 1054 CE NASA/ESA/J. Hester & A. Loll (Arizona State College In August 1181, astronomers in China and Japan witnessed a vibrant “visitor star” within the night time sky that we now know to have …
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