-
240 BCE
Eratosthenes
Calculated the circumference of the Earth. He also calculated the distance between the sun and the earth.
This is important because this helps us understand how we are able to have the perfect conditions of life. -
150
Claudius Ptolemy
Created a "star catalog" that described 48 constellations.
This is important because it helps us in space exploration. -
1514
Nicolaus Copernicus
The idea that the solar system didn't revolve around the sun.
This is important because this led to figuring out that the earth revolves around the sun. -
1572
Tycho Brahe
Came up with the theory that the solar system revolves around the earth.
This is important because this later is proved wrong and the solar system rotates around the sun. -
Johannes Kepler
Discovered that planets rotated in ellipses, not in circles, Planets don't have a constant pace in their orbit, and the distance between 2 planets is proportional to their distance from the sun.
His discovery of elliptical orbits explained many things on earth, such as the changing of seasons. -
Sir Isaac Newton
Law of universal gravitation.
This is important because this later helps us try to find how much thrust we need to fly out into space. -
Albert Einstein
Theorem of relativity, which led to an explanation of how the universe formed.
This is important because This helps us with satellites and makes things like GPSs work.