Gotcha: Fast radio burst’s home nabbed

Repeating signal let astronomers point multiple telescopes at distant galaxy

Very Large Array

CAUGHT IN THE ACT  The first images of a mysterious radio burst taken by the Very Large Array (pictured) reveal that these blasts originate in a tiny galaxy roughly 2.5 billion light-years away.

Dave Finley, NRAO/AUI/NSF

GRAPEVINE, TEXAS — A mysterious, recurring blast of cosmic radio waves finally has a home address.