Gamma ray bursts

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Knowing where cosmic rays don’t come from brings scientists another step closer to determining their origin. NSF/J. Yang

An extragalactic mystery: where do high-energy cosmic rays come from?

By David Jones, The Conversation

It’s been the defining question of high-energy astrophysics for the past century: where do cosmic rays come from? New findings from the IceCube Neutrino Observatory at the South Pole have brought us closer…
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GRBs have puzzled astronomers for decades, and there is still plenty to learn. EOS/A Roquette

Flash, aah-aah! Could a gamma ray burst eradicate all life on Earth?

By David Coward, University of Western Australia

Ever since they were discovered accidentally in the 1960s, gamma ray bursts (GRBs) have continued to amaze and puzzle astronomers worldwide. In nearly 50 years of research there seem to have been more…

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