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 ...

A new study of low-frequency sound from Mount St. Helens and Tungurahua volcanoes provides explanation for how the large-amplitude signals from eruptions are produced. New research on infrasound from ...

Federal scientists are looking for evidence that a bolt of electricity in the upper atmosphere might have doomed the space shuttle Columbia as it streaked over California, The Chronicle has learned.

The scariest day of Pete Lyman’s life was the morning the movers came for his 1978 Scully LS-76 vinyl-cutting lathe. It’s one of two rare machines at Lyman’s company, Infrasonic Sound, which cut the ...