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Halo Around a Gamma Ray Burst - Universe Today
Using the European Space Agency's XMM-Newton and Integral observatories, astronomers have discovered glowing X-ray halos around powerful, but short-lived, gamma ray bursts (GRBs). GRBs are the most energetic explosions in the known Universe, and could be created when a giant star turns into a black hole. The halos are created when the radiation from the GRB scatters through two clouds of gas and dust located only few thousand light-years away.