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A recent experiment confirmed the hypothesis that infrasound gives people the creeps

British scientists have shown in a controlled experiment that the extreme bass sound known as infrasound produces a range of bizarre effects in people including anxiety, extreme sorrow and chills — supporting popular suggestions of a link between infrasound and strange sensations.

And scientists recently discovered that black holes produce ultra-low sound waves

Astronomers using NASA’s Chandra X-ray Observatory have found, for the first time, sound waves from a supermassive black hole. […] In musical terms, the pitch of the sound generated by the black hole translates into the note of B flat. But, a human would have no chance of hearing this cosmic performance because the note is 57 octaves lower than middle-C. For comparison, a typical piano contains only about seven octaves. At a frequency over a million billion times deeper than the limits of human hearing, this is the deepest note ever detected from an object in the Universe.

Marc Laidlaw connects the dots.

Could it be that the supermassive black hole at the galactic core is responsible for the sense of cosmic dread that permeates our galaxy?

(Via Boing Boing )