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Goddard TV Video Tape: G2012-115 -- Fermi TGF Radio



Lightning in the clouds is directly linked to events that produce some of the highest-energy light naturally made on Earth: terrestrial gamma-ray flashes (TGFs). An instrument aboard NASA's Fermi Gamma-ray Space Telescope was recently fine-tuned to better catch TGFs, and this allowed scientists to discover that TGFs emit radio waves, too.   For complete transcript, click  here . Fermi Improves Its Vision For Thunderstorm Gamma-ray Flashes