Flaring black holes may solve cosmic ray puzzle - New Scientist - New Scientist

Flaring black holes may solve cosmic ray puzzle: Then they found a clue: gamma-ray burst GRB110328A, which happened in March 2011. Its afterglow persisted for over a week, instead of a few hours like normal ones. The culprit was most likely a star falling into a galaxy's central black hole. This would make a weak black hole flare up, producing a burst of gamma rays that in turn spits out cosmic rays, suggests Farrar...