ELI5: Explain Like I'm 5

Musica universalis

Musica Universalis is like a special song that everything in the world can play, even if they don't have voices or instruments! Imagine music that you can't hear with your ears but you can feel inside of you. It's like a secret language that the stars, planets, and everything in the world use to talk to each other without speaking.

The idea of Musica Universalis started a long time ago when people believed that the universe was like a big musical instrument that played a beautiful song. They thought that each planet, star, and even the sun had a sound that they made while moving through space. They imagined that all these sounds together created a perfect harmony, just like when many people sing together in a choir.

But you can't hear this special song with your ears. That's because it's not like the music you hear on the radio or in a concert hall. It's a different kind of music that is made by vibrations, or waves, that move through space.

Scientists today still study Musica Universalis, but they call it by a different name: the harmony of the spheres. They study how the planets and stars move and imagine how they might make sounds as they travel through space. It's like a big puzzle that they try to solve, but with music instead of pieces!

So next time you look up at the night sky, remember that everything up there is like a big musical instrument playing a song that we can't hear with our ears but that we can feel all around us!