We know what a sonic boom sounds like. But what does it look like? NASA, with help from the steady flying of Boom Supersonic ...

Up to 18% of Americans say they've seen a ghost, and there might be scientific explanation for it. A specific tone, called the 'ghost frequency' could create a vibration that shakes the eyes and ...

A new study now shows for the first time how amphibians defend themselves by screaming that is inaudible to human ears. Researchers have for the first time recorded the use of ultrasound by ...