"A 2005 study showed that a gamma-ray burst originating within 6,500 light years of Earth could be enough to strip away the ozone layer and cause a mass extinction. Researchers led by Adrian Melott at the University of Kansas in Lawrence, U.S., suggest that such an event may have been responsible for a mass extinction 443 million years ago, in the late Ordovician period, which wiped out 60 per cent of life and cooled the planet."
It might solve global warming.
Paul S.
----- Original Message ----
From: Greg Claytor <gclaytor@No-Spam>
To: TAC <sf-bay-tac@No-Spam>
Sent: Tuesday, March 4, 2008 1:08:14 PM
Subject: [TAC] Binary 'deathstar' has Earth in its sights
This is an interesting article about a future GRB that's pointed straight at us! I picture Elmer Fudd looking down the working end of a rifle asking "Is this think loaded?"
http://www.cosmosmagazine.com/node/1878
Greg Claytor
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Received on Tue Mar 04 18:34:07 2008