What does a giant black hole and its galaxy sound like?

Meet the newest stars on the music scene. Well, not stars precisely.

Messier 87 (M87), is an elliptical galaxy about 55 million light-years from Earth. At its center is a black hole with a mass that’s 6.5 billion times that of our companion sun. This black hole was the first to ever be imaged by the Event Horizon Telescope (EHT) project, which three years ago released a portrait of the black hole’s shadow and a bright disk of matter that is being gravitationally pulled into the black hole’s center. 

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