Tuesday, January 18, 2011

Fermi Spots Antimatter in Thunderstorms

by Jennifer Ouellette on Discovery News.  NASA's Fermi Gamma-Ray Space Telescope has detected antimatter, indirectly by observing gamma radiation at energies of 511 keV (kilo electron volts).  Those energies indicate an electron-positron pair annililated each other.  Positrons are anti-electrons, i.e., antimatter.