-------- Original Message -------- Subject: Yeschaton: Nemesis Date: Fri, 3 Aug 2007 17:10:08 +1000 From: Mark Pesce <[EMAIL PROTECTED]> To: Yeschaton <[EMAIL PROTECTED]>
http://sciencenow.sciencemag.org/cgi/content/full/2007/801/1 The Earth's periodic mass extinctions may have a lot to do with close encounters with cosmic rays... _______________________________________________ FRIENDS mailing list [email protected] http://lists.sffreaks.org/mailman/listinfo/friends
