NASA’s Fermi Detects the Highest-Energy Light From a Solar Flare

Fermi LAT all-sky map

(multimedia) During a powerful solar blast on March 7, NASA’s Fermi Gamma-ray Space Telescope detected the highest-energy light ever associated with an eruption on the sun. The discovery heralds Fermi’s new role as a solar observatory, a powerful new tool for understanding solar outbursts during the sun’s maximum period of activity.

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