Gamma Rays from Galactic Center Dark Matter . ... Fermi Space Telescope , NASA Explanation: What is creating the gamma rays at the center of our Galaxy? Excitement is building that one answer is elusive dark matter . Over the past few years the orbiting Fermi Gamma-ray Space Telescope has been imaging our Galaxy's center in gamma-rays . Repeated detailed analyses indicate that the region surrounding the Galactic center seems too bright to be accounted by known gamma-ray sources . ...