From NobelPrize https://twitter.com/NobelPrize on Twitter: On 23 February 1987 the supernova SN 1987A became visible from the earth. Approximately ten million billion neutrinos from supernova SN 1987A reached physicist Masatoshi Koshiba's water tank, of which his research group detected 12, confirming theories of supernovae. https://twitter.com/NobelPrize/status/1628666240624472066/photo/1 https://chirp.cooleysekula.net/attachment/81a008b292f18433d046ce801cbf4538364e80031956c65378e6625fcb9f2ad9/view