Learn how scientists used the Fermi Gamma-ray Space Telescope's gamma-ray detector to uncover bursts of antimatter from thunderstorms.
NASA/Goddard Space Flight Center
2012-01-24
<a rel="nofollow" class="external text" href="http://svs.gsfc.nasa.gov/vis/a010000/a010900/a010900/">Goddard Multimedia</a>