It comes in the night, settling over whole towns and keeping people awake for hours on end. It’s low-level, omnipresent, and constant—and it’s been doing its disturbing work for decades. It’s called ...

A mysterious, low-frequency noise has settled over the small town of Omagh in Northern Ireland, and is keeping people awake. It’s called “The Hum,” and reports of this phenomenon have been popping up ...