My appoligies it was John Cannizzo from NASA, that talked about the Gamma Rays. Dr Kieda talked about the U's Observatory Project, and some site surveys they are doing to decide on site. Wish Chad Moore had been there, wish he also subscribed to our chat group.

Erik Super Novas' close enough to earth can sterlize it, but I think the life is extincted along with the ozone. Dr. Kieda touhed on that a little at our last meeting. Just of the top of my head, I'm just finishing dinner. As I recall the extinctions come about 67 million years apart and most are believed to be caused by an Asteroid or Big Comet. A lot of these craters have been found, the Gulf of Mexico is approximately one of them. Geologist also point to the moon as evidence of many impacts in the last 4 billion years. The bad news is that it has been about 67 million years since our last extinction. I heard a biologist refer to Humans as a giant rock heading towards the earth. Which will get us first, ourselves or an Asteroid? Erik I read this article today on and thought it was interesting.

http://www.msnbc.msn.com/id/3900550/

Julie

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