cosmology history

  • 1473

    Nicolaus Copernicus

    Nicolaus Copernicus was an astronomer who proposed a heliocentric system, that the planets orbit around the Sun
  • 1546

    Tyco Brahe

    Brahe showed irregularities in the Moon's orbit and discovered a new star in the Cassiopeia formation. 
  • 1571

    Johannes Kepler

    Johannes Kepler discovered the Keplerian Telescope
  • Isaac Newton

    Isaac Newton changed the way we understand the Universe. Revered in his own lifetime, he discovered the laws of gravity and motion and invented calculus
  • William Herschel

    William Herschel discovered the planet Uranus and many others stars and planets.
  • Pierre-Simon Laplace

    Laplace announced the invariability of planetary mean motions (average angular velocity)
  • Percival Lowell

    Founded the Lowell Observatory that discovered the planet Pluto
  • Georges Lemaitre

    Appealing to the new quantum theory of matter, Lemaître argued that the physical universe was initially a single particle.
  • Henrietta Leavitt

    She found that a certain type of star, the Cepheid variable, pulses at a rate that's related to its brightness.
  • Willem de Sitter

    The development of general relativity and its application to cosmology by German-born physicist Albert Einstein.
  • Albert Einstein

    Albert Einstein is justly famous for devising his theory of relativity, which revolutionized our understanding of space, time, gravity, and the universe.
  • Harlow Shapley

    deduced that the Sun lies near the central plane of the Milky Way Galaxy and was not at the centre but some 30,000 light-years away.
  • Edwin Hubble

    His discovery in the 1920s that countless galaxies exist beyond our own Milky Way galaxy revolutionized our understanding of the universe and our place within it.
  • Fred Hoyle

    Sir Fred Hoyle was an English astronomer and cosmologist, primarily remembered today for his contribution to the theory of stellar nucleosynthesis, and his often controversial stance on other cosmological and scientific matters
  • Arno Penzias & Robert Wilson

    studied cosmic radiation in 1964, they discovered that microwaves with a wavelength of about 7 centimeters were stronger than expected.