Brightest Gamma-Ray Flare in Universe Spotted

A distant galaxy with a giant black hole in its center has been acting up recently, emitting extremely bright flashes of gamma ray light.
The flares began Sept. 15, making the galaxy currently the brightest source of gamma rays in the sky and boosting its own brightness to more than 10 times its regular luminosity over the summer. NASA's Fermi Gamma-ray Space Telescope has been observing the phenomenon to learn more about how such active galaxies work. Astronomers think this galaxy, identified as 3C 454.3, is what's called a blazar.

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