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    Fermi Proves Supernova Remnants Make Cosmic Rays

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    Michael500ca

    by Michael500ca

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    The husks of exploded stars produce some of the fastest particles in the cosmos. New findings by NASA's Fermi show that two supernova remnants accelerate protons to near the speed of light. The protons interact with nearby interstellar gas clouds, which then emit gamma rays.

    Credit: NASA's Goddard Space Flight Center