http://www.wired.com/wiredscience/2011/01/lightning-antimatter-physics/
Thunderstorms Shoot Beams of Antimatter Into Space By Ron Cowen, Science News January 11, 2011 SEATTLE — Forget about gamma rays from the hearts of distant galaxies. Scientists now believe gamma rays, as well as beams of energetic particles of antimatter, are common components of lightning storms right here on Earth. In 2009, researchers announced that NASA’s Fermi Gamma-ray Space Telescope had, for the first time, detected gamma rays produced by antimatter generated in terrestrial lightning storms (SN: 12/5/09, p. 9) <more>
