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1987A, should give rise to a neutrino burst at a density of 50 billion per square centimeter when it finally reached the earth. This neutrino burst, lasting just 12 seconds, was observed in the huge neutrino detectors at Kamiokande in Japan and also at Fairport, Ohio.
Thus SN 1987A provided a remarkable confirmation of the general picture of neutron star formation developed over the last fifty years. Importantly it also confirmed that the Urantia Paper got its facts right long before its "little neutral particle" was discovered and also long before the concept of neutrino-yielding supernovas achieved respectability.
References
1. I Asimov, The Neutrino (Dobson Books, London, 1966) 2. E.M and G.R. Burbidge, W.A. Fowler, and F. Hoyle (1957) 3 K.S. Thorne, Black Holes and Time Warps: Einstein's Outrageous Legacy. (Picador, London. 1994) 4. I Novikov, Black Holes and the Universe. (Cambridge University Press, 1990)
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