This all-sky view shows how the sky appears at energies greater than 1 billion electron volts (GeV) according to five years of data from NASA's Fermi Gamma-ray Space Telescope. (For comparison, the energy of visible light is between 2 and 3 electron volts.) The image contains 60 months of data from Fermi's Large Area Telescope; for better angular resolution, the map shows only gamma rays converted at the front of the instrument's tracker. Brighter colors indicate brighter gamma-ray sources. The map is shown in galactic coordinates, which places the midplane of our galaxy along the center.
The five-year Fermi map is available in multiple resolutions below, along with additional plots containing reference information and identifying some of the brightest sources.
Scott Wiessinger (USRA): Producer Francis Reddy (University of Maryland College Park): Lead Science Writer Francis Reddy (University of Maryland College Park): Lead Visualizer
Please give credit for this item to: NASA's Goddard Space Flight Center. However, individual images should be credited as indicated above.
Short URL to share this page: https://svs.gsfc.nasa.gov/11342
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0