Edwin Hubble.
Doppler red shifts and blue shifts of light from the stars in the galaxies.
Astronomer Clyde Tombough found Pluto on February 13, 1930.
all galaxies are constantly moving away from each other and are increasing in speed due to the lessening effect of gravity over the distances between galaxies and the theoretical dark energy which scientists have yet to prove the existance of
The first person to prove that light does not travel at infinite speed was Danish astronomer Ole Rømer in the 17th century. He observed the moons of Jupiter and noted discrepancies in their predicted and observed timings, which led him to the conclusion that light takes time to travel from one place to another.
The idea that Earth revolves around the Sunwas first realized in the 3rd_century_BCby Aristarchus_of_Samos. However, it was not until the 16th century that a fully predictive mathematical model of a heliocentric system was presented, by mathematician and astronomer Nicolaus_Copernicus. In the following century it was expanded by Johannes_Keplerand Galileo_Galilei.
there are negative electrons on the outside of the atom
Well.... you can't really prove something doesn't exist, you can only prove it does. But, nobody has found or seen a pikmin outside the game.
I think you are referring to Nicolaus Copernicus.
By making observation
take a picture of yourself outside of the home
Benjamin Franklin was the first person to prove that lightning is a form of electricity.
Prove it you first