Cats have taken over the Internet, but before computers were even around, cats were already making notable achievements in the world of science. Astronomer Edwin Hubble had a cat named Nicolas Copernicus, named after the Renaissance astronomer who dared assert that the Earth revolved around the Sun.

The Huntington Library in San Marino, California, found a letter written by Hubble’s wife that insinuates that Nicolas may have helped Hubble uncover the secrets of the expanding universe: “When [Edwin] worked in the study at his big desk, Nicolas solemnly sprawled over as many pages as he could cover. ‘He is helping me,’ Edwin explained./

So perhaps a cat is behind the latest technology you’re enjoying right now. After all, if cats could take over the Internet, it only makes sense that they would take over the scientific world as well.

To learn more about how cats may have influenced science, click here.