Distance at which supernova would spark mass extinctions on Earth, University of Kansas, May 11, 2017 https://www.sciencedaily.com/releases/2017/05/170511115935.htm http://news.ku.edu/2017/05/08/research-increases-distance-which-supernova-would-spark-mass-extinctions-earth
What’s a safe distance between us and a supernova? by EarthSky, May 7, 2017 http://earthsky.org/astronomy-essentials/supernove-distance Yours, Paul H. ______________________________________________ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
