Posted 7 months ago / 3,542 notes / Tagged: albert einstein, astronomy, astrophysics, copernicus, e=mc2, earth, einstein, galielo galilei, galileo, gravity, heliocentric, heliocentric model, hubble, hubble telescope, hydrogene portfolio, hydrogeneportfolio, isaac newton, law of gravity, minimal astronomist posters, minimal astronomy posters, moon, nasa, newton, planets, relativity, solar system, sun, telescope, telescopic astronomy, theory of relativity,