People Have Reported Hearing a Mysterious Low-Frequency Hum for Decades—Scientists Now Think They’ve Found the Source The Debrie... (opens in new tab)

Known as “The Hum,” these inexplicable sounds have long been reported and an array of explanations for their source have been offered—industrial, military, and ET among them. Recently, a study by a Norwegian university “identified no external source” for the troublesome noise and concluded that at least some of it originates in the human auditory system, i.e., tinnitus. Meanwhile, Scientists Investigate Strange Rumbling Beneath Utah, which has been unexplained since 1979. Boffins from the Uni...