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Photons from a hotter hell

Blazars are massive black holes sending out particle jets at close to the speed of light. Stupendously fast, intense bursts of highly energetic γ-rays indicate that the blazar environment is even more extreme than was thought.

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Figure 1: Cosmic rollercoaster.
Figure 2: Eye on the sky.



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Weekes, T. Photons from a hotter hell. Nature 448, 760–761 (2007).

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