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Showing results for tags 'cosmic rays'.
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Odd sandstone found while out checking fences on western boundary of my property in Grant County NM. Any input is welcomed..
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Massive supernova could have made humans walk upright, study says. Researchers claim cosmic particles bombarded Earth’s surface at such high levels forests turned to savannah Phoebe Weston, The Independent https://www.independent.co.uk/news/science/massive-supernova-explosion-star-humans-walk-upright-hominins-space-news-adrian-melott-a8932966.html Researchers wonder if ancient supernovae prompted human ancestors to walk upright by University of Kansas https://phys.org/news/2019-05-ancient-supernovae-prompted-human-ancestors.html The paper is: Melott, Adrian L., and Brian C. Thomas. "From cosmic explosions to terrestrial fires?." arXiv preprint arXiv:1903.01501 (2019). https://arxiv.org/pdf/1903.01501.pdf Adrian L. Melott and Brian C. Thomas, "From Cosmic Explosions to Terrestrial Fires?," The Journal of Geology 0, no. 0 (-Not available-): 000. https://doi.org/10.1086/703418 https://www.journals.uchicago.edu/doi/10.1086/703418 Yours, Paul H.
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Did a Supernova Kill Off Megalodon 2.5 Million Years Ago?
Oxytropidoceras posted a topic in Fossil News
Megalodon may have been killed off by Supernova radiation, Hannah Osborne, Newsweek, December 13, 2018 https://www.newsweek.com/megalodon-extinct-shark-supernova-cosmic-ray-cancer-mutations-1256980 Massive supernova explosion may have wiped out giant prehistoric sharks, scientists say. Megalodon may have been among creatures driven to extinction after cosmic particles drove up cancer rates, new study claims The Independent, Josh Gabbatiss, December 2018 https://www.independent.co.uk/news/science/supernova-stars-explosion-giant-sharks-prehistoric-megalodon-extinction-science-a8679636.html The paper is: Adrian L. Melott, Franciole Marinho, and Laura Paulucci 2018, Hypothesis: Muon Radiation Dose and Marine Megafaunal Extinction at the End-Pliocene Supernova. Astrobiology, Published Online, November 27, 2018 https://doi.org/10.1089/ast.2018.1902 and at Muon Radiation Dose and Marine Megafaunal Extinction at the end-Pliocene Supernova Adrian L. Melott (Kansas), Franciole Marinho, Laura Paulucci (Submitted on 26 Dec 2017 (v1), last revised 17 Oct 2018 (this version, v2)) https://arxiv.org/pdf/1712.09367.pdf https://arxiv.org/abs/1712.09367 Yours, Paul H.- 3 replies
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