The Lowest Note in the Universe

11 Jan 2015

If you know where to look, music can be found just about everywhere, even in space.

Back in 2005, astronomers have discovered sound waves coming from a giant black hole at the center of the M87 galaxy, which is located in the heart of a bunch of galaxies called the, some 50 million light-years away. You can’t hear them, obviously, because they’re so low on the scale that the waves themselves are spaced four million years apart, which means you get hit with the first wave and have to wait four million years for the next one to come along. That’s deepbass.

But if you want to go even deeper, there’s the sound coming from the Perseus cluster of galaxies. This could be the phattest bass note in the universe: B flat, 57 octaves below middle C.

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