You would think they would have been harder to miss: unimaginably powerful bursts of cosmic radiation, so bright they can blast our radio telescopes from billions of light-years away and occurring perhaps as often as a thousand times a day.
But fast radio bursts (FRBs) went undetected until 2007, and despite a decade and a half of investigation, remain one of the most enticing mysteries in astrophysics. Recent studies are providing new and promising hints about their origins, while