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Another target: blazars or marathon gamma ray bursts. Blazars are thought to come from supermassive black holes at the centers of young, active galaxies. “A blazar episode lasts for 10 million to 100 million years,” explains Alan Marscher, an astrophysicist at Boston University who heads the university’s blazar research group. In the process, they generate telltale jets of particles that stretch into space for 10 million to 100 million light-years. Data from GLAST, combined with information from radio-telescopes and visible light, will help scientists tease out the processes behind these galactic beacons. (via With new telescope, a fresh view of the cosmos)
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