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Old 01-10-2013, 11:37 PM   #1628
jeffro3000
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Join Date: Feb 2008
Location: Huntsville, AL
Posts: 2,812
My Ride: 2000 328i
Some cool news from my town/school

Nasa detected a burst of positrons with the Fermi detector back in 2010 that originated from earth. They think it comes from "dark lightning," a chain reaction of high energy electrons emitted from a storm hitting air molecules and producing gamma rays. Gamma rays in turn interact with more air molecules producing electron - positron pairs, and the cycle continues. Since the process mostly takes place outside of the visible spectrum, you get an invisible burst of antimatter detectable from orbit.




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