Science timeline

  • Hipparchus
    109 BCE

    Hipparchus

    Discoveries
    He made significant advancements in understanding the motions of the Sun and Moon, including their orbits and eclipses.
  • Nicolaus Copernicus
    1473

    Nicolaus Copernicus

    Discoveries
    Heliocentric model: the core concept of his theory where the Sun is the central point of the solar system.
    Earth's rotation: Copernicus also proposed that the Earth rotates on its axis daily
  • Tycho Brahe
    1546

    Tycho Brahe

    Discoveries
    Supernova.
    Comet.
  • Galileo Galilei
    1564

    Galileo Galilei

    Discoveries
    The Moon.
    Jupiter's moons.
    Venus.
    Sunspots.
  • Johannes Kepler
    1571

    Johannes Kepler

    Discoveries
    Kepler's Second Law, planets move proportionally faster in their orbits when they are closer to the Sun.
  • Isaac Newton

    Isaac Newton

    Discoveries
    The theory of universal gravitation.
    The nature of white light.
  • Caroline Herschel

    Caroline Herschel

    Discoveries
    Three new nebulae.
    First woman to discover a comet.
  • Annie Jump Cannon

    Annie Jump Cannon

    Discoveries
    300 variable stars.
    Five novae.
  • Henrietta Swan Leavitt

    Henrietta Swan Leavitt

    Discoveries
    The correlation between Period and Luminosity.
    More than 2,400 variable stars.
  • Edwin Hubble

    Edwin Hubble

    Discoveries
    The existence of the universe beyond our own Milky Way galaxy.
    Galaxies farther away from us are receding faster than those nearby.