Black Holes: The Universe's Deepest Song

Scientists just confirmed that black holes are literally singing to us and we've been ignoring

their cosmic concert for decades. Using data from NASA's Chandra X-ray Observatory,

researchers discovered that the black hole in the Perseus galaxy cluster has been humming the deepest

note in the universe for over two billion years. It's 57 octaves below middle C,

which means if you could hear it, you'd need ears the size of galaxies. The wildest part?

This cosmic karaoke isn't just noise. The sound waves are actually heating up surrounding gas

and preventing new stars from forming, meaning this black hole is literally singing the universe

to sleep.