Although they’re emitted by some in the animal world, infrasound are sound waves with frequencies so low, they are beyond the limit of human hearing. Now, thanks to the app call RedVox, scientists and ...

Add Yahoo as a preferred source to see more of our stories on Google. Solar-powered balloons are recording mysterious sounds below human hearing in the stratosphere. The unknown crackling could be the ...

17 infrasound stations in the CTBTO’s network detected the infrasonic waves from the meteor that broke up over Russia’s Ural mountains. Infrasonic waves from the meteor that broke up over Russia’s ...

Click image to see and hear multiple explosions of the fireball when it broke apart 12-15 miles high over Chelyabinsk, Russia on Feb. 15, 2013. This video scares me every time I see it. You've ...

Sometimes, the most important sounds are those that cannot be heard. Take infrasound—acoustic waves below the range of human hearing. Although nuclear weapons blasts, midair meteor explosions, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Giant solar ...

If you visit Hawaii Volcanoes National Park’s Jaggar Museum Overlook when the wind is calm, you might be able to hear the sounds of gas bubbles bursting and lava splashing in the Halemaumau lava lake ...

Wit Aniwat, whose family runs an elephant camp for tourists in Thailand, was awakened by an unusual alarm clock: the trumpeting and wailing of elephants. It was a bit out of the ordinary, but Wit ...

Eerie sounds from the edge of space were recorded for the first time in 50 years aboard a NASA student balloon experiment. Infrasound microphones captured the mysterious hisses and whistles 22 miles ...

Daniel Bowman sends cell phones into the stratosphere aboard solar-powered hot-air balloons. You might be surprised what sounds they record up there. These balloons listen to the Earth from a dozen ...

17 infrasound stations in the CTBTO’s network detected the infrasonic waves from the meteor that broke up over Russia’s Ural mountains. 17 infrasound stations in the CTBTO’s network detected the ...

Infrasonic waves from the meteor that broke up over Russia's Ural mountains last week were the largest ever recorded by the CTBTO's International Monitoring System. Infrasound is low frequency sound ...