ScienceAlert on MSN

Mysterious global 'hum' has tormented people for 50 years – scientists think they may have found a cause

(Jun/Getty Images Plus) For decades, some people around the world have reported hearing a strange, sonorous background tone ...
UNILAD

Scientists finally think they know the cause of mysterious 'hum' sound heard by people across the globe

It first became a talking point in the 1970s after residents of one UK city started reporting the same strange noise ...
Funny Olde World on MSN

Watch why a giant underground shaft was sealed off after a series of unexplained disappearances

Deep beneath Russia's Caucasus Mountains lies a mysterious shaft surrounded by rumors of underground cities, Nazi expeditions, unexplained deaths, and military restrictions. Strange humming sounds and ...

A Mysterious Hum Has Plagued the Earth for 50 Years. Scientists May Have Finally Found Its Source.

Since the 1970s, people across the world have reported hearing an inexplicable low-frequency droning. Scientists now think they know what it is.
Medical Xpress

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's population hear this. Scientists have been trying to figure out for ...