(Animation) Geminga's Gamma Rays (IMAGE)

NASA/Goddard Space Flight Center

(Animation) Geminga's Gamma Rays

Caption

This animation shows a region of the sky centered on the pulsar Geminga. The first image shows the total number of gamma rays detected by Fermi's Large Area Telescope at energies from 8 to 1,000 billion electron volts (GeV) -- billions of times the energy of visible light -- over the past decade. By removing all bright sources, astronomers discovered the pulsar's faint, extended gamma-ray halo.

View animated GIF: https://www.nasa.gov/sites/default/files/thumbnails/image/gemingagrbanner.gif

Credit

NASA/DOE/Fermi LAT Collaboration

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