Last updated on April 24, 2014 at 14:55 EDT
NASAs Fermi Mission Namibias HESS Telescopes Explore a
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NASA's Fermi Mission, Namibia's HESS Telescopes Explore a Blazar

January 10, 2013
In the heart of an active galaxy, matter falling into a supermassive black hole somehow creates jets of particles traveling near the speed of light. For active galaxies classified as blazars, one of these jets beams right toward Earth. Credit: NASA/Goddard Space Flight Center Conceptual Image Lab