Astronomers have heard the sound of a black hole singing the lowest note in the universe – a B flat 57 octaves lower than middle C. (Generating this note for more than two billion years)

The low notes of B flat emitted by black holes that were detected are 30,000 light-years across and have a period of oscillation of 10 million years. By comparison, the deepest, lowest notes that humans can hear have a period of about one-twentieth of a second.

Turns out there’s a reason all those Charlie Parker & Dizzy Gillespie songs are in B flat – They were grooving on a higher plane and in synch with the note the universe hums in.


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