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Astronomer Timeline

  • 1510

    Nicolaus Copernicus

    Nicolaus Copernicus
    Copernicus developed the Heliocentric theory.
  • 1572

    Tycho Brahe

    Tycho Brahe
    Brahe discovered that there was a star that was unmoving. He also noticed that the planets orbit the sun in elliptical orbits.
  • Johannes Kepler

    Johannes Kepler
    Johannes Kepler developed the three theories on planetary motion as well as worked with Tycho Brahe.
  • Galileo Galilei

    Galileo Galilei
    Galileo is one of the first astronomers to observe the skies using a telescope. He also discovered the first four moons of Jupiter.
  • Christiaan Huygens

    Christiaan Huygens
    Huygens discovered the true shape of the rings of Saturn.
  • Isaac Newton

    Isaac Newton
    Isaac Newton is famous for many things. One of the most famous being his three laws of gravity.
  • Edmond Halley

    Edmond Halley
    His last name may sound familiar to you. That is because Edmond Halley is the astronomer that discovered the Halley's comet.
  • William Herschel

    William Herschel
    William Herschel is the first person to discover infrared radiation. He also discovered Uranus was a planet.
  • Albert Einstein

    Albert Einstein
    Albert Einstein is most famous for developing the laws of relativity.
  • Edwin Hubble

    Edwin Hubble
    Hubble discovered galaxies. The Hubble Telescope is named after him as well.