Your daily dose of science on the Webhttp://cosmiclog.msnbc.msn.com/archive/2008/01/28/615726.aspx 'Nova' on PBS: 'Secrets of the Parthenon' The Atlantic: The autumn of the multitaskers Science News: Why water is so utterly weird Discovery.com: Alien impact poisons Canadian town UIUC: Scientists propose astronomical test of string theoryen-USCommunityServer 2.0 (Build: 60608.1)Your daily dose of science on the Webhttp://cosmiclog.msnbc.msn.com/archive/2008/01/28/615726.aspx#616606Tue, 29 Jan 2008 00:32:01 GMT8a5d2dbc-a0e4-4c7a-979f-3188051f228e:616606www.actionforspace.comMaybe this poisoning of a Canadian town will get policy makers thinking more seriously about astereoid threats. Your daily dose of science on the Webhttp://cosmiclog.msnbc.msn.com/archive/2008/01/28/615726.aspx#617958Tue, 29 Jan 2008 17:14:11 GMT8a5d2dbc-a0e4-4c7a-979f-3188051f228e:617958Frank, Dallas, TXProbably not.  The impact in question happened almost 250 million years ago.