2003-02-24 04:00:00 PDT Denver-- In rumbling tones far lower than the sounds that human ears can hear, a symphony of mysterious noises constantly assails the entire globe, and scientists are learning ...

PASADENA, CA - MARCH 30: Aerial view of light traffic at the interchange of the 210, 134 and 110 freeways on March 30, 2020 in Pasadena, California. City officials have implored Southern Californians ...

Infrasound is too low-frequency for humans to hear. It has been mistaken for ghosts, has been known to cause nausea and headaches in humans, and is used to monitor the testing of nuclear weapons. It’s ...

New research on infrasound from volcanic eruptions shows an unexpected connection with jet engines. Researchers at Scripps Institution of Oceanography at UC San Diego speeded up the recorded sounds ...

The Cotopaxi, a volcano located sixty miles from the city of Quito in Ecuador, is considered a dangerous volcano. More than 300,000 people live nearby and eruptions in the past have caused widespread ...

Ultra-sensitive microphones aboard a Nasa student balloon, floating at the edge of space has captured infrasonic sounds whose source has not been ascertained as yet. Theories for the sounds range from ...

Our atmosphere is filled with sounds that we cannot hear. The Earth hums; volcanoes howl, pop and whistle; storms roar menacingly; and meteors scream before exploding high above the ground. We are ...