One of Edwin Hubble's most significant discoveries was Hubble's
Law, formulated in 1929. π
This law states that galaxies move away from us, and the farther they are, the faster they go! This discovery showed that our universe is expanding like a balloon! π
Hubble also discovered that the universe is made up of billions of galaxies, each containing millions or even billions of stars! β
By studying how galaxies look and move, he changed our understanding of the cosmos forever. His discoveries laid the foundation for modern astronomy!