Mystery radio bursts spew gamma rays too

摘要

Blasts of radio waves from space may deliver a much bigger wallop than expected. For the first time, we have seen one of these enigmatic fast radio bursts occurring together with a spurt of gamma rays, meaning their joint source may be a billion times more energetic than we thought. FRBs have proved baffling since their discovery in 2007. Each torrent of radio waves lasts no more than a few milliseconds and we have only spotted 17 of them so far.