Skywatch

  • February 11, 2010

    Episode 261: Cosmic Ray Origins

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    Shownotes

    The new Fermi telescope joins a suite of gamma ray telescopes searching for the origins of gamma rays, cosmic rays and evidence of other energetic phenomena in the universe. Fermi has found new evidence for its namesake's theory for the origin of cosmic rays. The idea is that energetic particles are accelerated within the remnants of supernovae. Fermi was able to detect faint gamma-rays that appear to be associated with supernovae in two "normal" type galaxies, M82 and NGC253.