Cosmic rays showered Earth 1230 years ago, but where from? Los Angeles Times, June 4, 2012 http://www.latimes.com/news/science/sciencenow/la-sci-sn-cosmic-ray-increase-20120604,0,6401794.story?track=rss
Mysterious radiation burst recorded in tree rings (Spike in carbon-14 levels indicates a massive cosmic event — but supernovae and solar flares ruled out.) by Richard A. Lovett, June 2, 2012 http://www.nature.com/news/mysterious-radiation-burst-recorded-in-tree-rings-1.10768 The paper is: Miyake, F., K. Nagaya, K. Masuda, and T. Nakamura, 2012, A signature of cosmic-ray increase in ad 774–775 from tree rings in Japan. Nature. Published online June 3, 2012. http://www.nature.com/nature/journal/vaop/ncurrent/full/nature11123.html Best wishes, Paul H. ______________________________________________ Visit the Archives at http://www.meteoritecentral.com/mailing-list-archives.html Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
