‘Ghostly’ neutrino from star-shredding black hole reveals cosmic particle accelerator of epic proportions


A ghostly particle that smashed into Antarctica in 2019 has been traced back to a black hole tearing apart a star while acting like a giant cosmic particle accelerator, a new study finds.

Scientists investigated a kind of subatomic particle known as a neutrino, which is generated by nuclear reactions and the radioactive decay of unstable atoms. Neutrinos are extraordinarily lightweight — about 500,000 times lighter than the electron.



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