Astronomers solve 900-year-old cosmic mystery surrounding Chinese supernova of 1181AD - discu.eu

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Astronomers solve 900-year-old cosmic mystery surrounding Chinese supernova of 1181AD https://www.technology.org/2021/09/17/astronomers-solve-900-year-old-cosmic-mystery-surrounding-chinese-supernova-of-1181ad/ 5 comments 17/9/2021 space

Astronomers solve 900-year-old cosmic mystery surrounding Chinese supernova of 1181AD https://www.manchester.ac.uk/discover/news/astronomers-solve-900-year-old-cosmic-mystery-surrounding-chinese-supernova-of-1181ad/ 11 comments 15/9/2021 space