The hum that only a few can perceive: Potential sources of a low-frequency sound

Some people occasionally hear a low buzzing or humming sound that doesn't have a clear source. An estimated 2–4% of the world ...
Miami Herald

A mysterious, low hum has plagued a UK village for years. Here’s what it sounds like

A mysterious, low hum has plagued Holmfield, Halifax, UK for years. Investigators are stumped. Satellite View Image from 2022 © Google 2022 The hum began sometime ...
New Scientist

Gravitational waves produce a background hum across the whole universe

The fabric of the universe is constantly rippling, according to astronomers who have discovered a background buzz of gravitational waves. These waves may be produced by supermassive black holes ...