Discovered Geocentric View
Discovered Heliocentric View
Observed Jupiter's moons.
Created physics, gravity and made laws of motion.
Discovers radium and polonium and created x-rays.
Made devices to measure light which allowed for measurement of distance between our planets.
Created the periodic table and predicted for more elements to be discovered.
Discovered that the universe is still expanding.
(13.9 billion years ago, the universe exploded and created stars which were able to create our solar system/ everything else in the universe.