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 ...
7don MSN
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 ...
Theories about the cause of the phenomenon The Hum abound, from acoustic pollution originating from human sources, to sounds that nature itself makes. Or that the ear itself produces the humming sound ...
The Daily Galaxy on MSN
Scientists may have finally found the source of the mysterious hum heard for 50 years
For more than half a century, people across the world have reported a strange low-frequency sound often described as a ...
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