Science Assignment

Kepler explains the emotion of the planets

Galileo is the favour heliocentric model of the unvierse

Isaac Newton explains gravity

William Herschel constructs the first Milky Way galaxy

Ernst Opik demonstrates the Andromeda nebula lies outsides the Milky Way galaxy

Georges Lemaitre propose the Big Bang theory which suggests the unvierse began as a gaint explosion of energy

Edwin Hubble dicovers evidence of an expanding unvierse which supports the Big Bang model.

Neil Armstrong and Buzz Aldrin are the first human beings to walk on the surface o the Moon

Pioneer 10 becomes the first spacecraft to leave the solar system