Space.com Gamma-Ray Blazars Powered By ‘Supersized’ Black Holes Found | Video 30 January 2017 fborgosano Leave a comment Share: Using the Fermi Gamma-ray Space Telescopes, astronomers found 5 early universe gamma-ray blazars. Two of them were powered by “billion-solar-mass” black holes according the NASA’s Goddard Space Flight Center. from Space.com ift.tt/2kk3WxK Share: