A fleet of DIY solar-powered, high-altitude research balloons have recorded a mysterious low-frequency sound high in the upper atmosphere that repeats a number of times each hour. The sound occurs in the infrasound range, meaning it’s below the threshold of human hearing, only occasionally spiking as high as 25read more

A chunk of ice, ?half the size of a car? fell out of the sky and ripped through the roof of a repair service area at an Acura dealership in Charleston, South Carolina. Authorities say samples of the ice are being tested by state officials, but for now, the source of the ice remains a mystery.

The ice landed about 9 a.m. last Wednesday, just missing a dealership employee and causing $5,000 damage to the roof and damage to a new car, according to St. Andrews Fire Department Captain Ray Gorham. ?It punched through the roof like you punch your hand through a piece of paper,? he says. ?It had to come from high up and had to be traveling at a high rate of speed. It had to be a fairly large piece because it put a 3-foot hole in the roof.?
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A 3 pound chunk of ice crashed through the roof of a house owned by a 63 year old woman in Sydney, Australia last Wednesday. No one was hurt when the block smashed to pieces on the bathroom floor. The woman was home when she heard the crashing noise, and police found a hole in the ceiling.

Police Inspector Paul Hume consulted the weather bureau, which said it couldn’t have been hail. He says the only explanation is that the ice block fell from an airplane, but the house is not underneath a flight path.

An Airservices Australia spokesman said it was “virtually impossible” for the ice to have fallen from a plane. “For the ice to freeze on the airplane, it would have to be flying at a very high level,” he said.
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