Video Link: https://www.youtube.com/watch?v=PSOVLkXvyy0

Fermi Observation of Early Background Light Animation
This animation tracks several gamma rays through space and time, from their emission in the jet of a distant blazar to their arrival in Fermi #39;s Large Area Telescope (LAT). During their journey, the number of randomly moving ultraviolet and optical photons (blue) increases as more and more stars are born in the universe. Eventually, one of the gamma rays encounters a photon of starlight and the gamma ray transforms into an electron and a positron. The remaining gamma-ray photons arrive at Fermi, interact with tungsten plates in the LAT, and produce the electrons and positrons whose paths through the detector allows astronomers to backtrack the gamma rays to their source. Completed: 2012-10-31 Animator: Cruz DeWilde (Avant Gravity) (Lead) Producers: Scott Wiessinger (USRA), Francis Reddy (Syneren Technologies) Writer: Francis Reddy (Syneren Technologies) Series: Astrophysics Animations Credit: NASA/Goddard Space Flight Center/Cruz deWildeFrom:Michele DiodatiViews:5 1ratingsTime:01:46More inScience Technology

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Fermi Observation of Early Background Light Animation - Video