Astronomy

By Christopher :)
  • 384 BCE

    Aristotle

    was an Astronomer mathematician and he proved the fact the earth is round and earth was the center of the universe, all planets suns and moons spun around the earth.
  • 190 BCE

    Hipparchus

    he made the discovery of the perception of eqenotics and he calculate the distance between the earth and the moon.
  • 100

    Ptolemy

    almagest and the geocentric
  • 1473

    Copernicus

    Heliocentric model which is were the sun is in the center.
  • 1564

    Galileo

    Discovered 5 new moons of jupiter- io Europa Ganymede, and Callisto sunspots stars are not fixed to invisible shells
  • 1564

    Galileo

    Discovered 5 new moons of jupiter- io Europa Ganymede, and Callisto sunspots stars are not fixed to invisible shells
  • 1564

    Galileo

    Discovered 5 new moons of jupiter- io Europa Ganymede, and Callisto sunspots stars are not fixed to invisible shells
  • 1570

    Hans Lippershey

    invented the telescope with 3x magnification.
  • 1570

    Hans Lippershey

    nvented the telescope with 3x magnification.
  • 1571

    Johannes Kepler

    Tycho Brahe's assistant. Discovered that the orbit of the planets are not circular but elliptical (oval)

  • Tycho Brahe

    observer the stars without a telescope.

  • Giovanni Cassini

    Found 4 new moons of saturn and the rings of saturn.

  • Sir Isaac Newton

    3 laws of motion, reflecting telescope, and theory of color

  • William Herschel

    he realized that one celestial body he had observed was not a star, but a planet, Uranus more of saturn's moons, water on mars.

  • Percival Lowell

    Found canales on mars

  • Ejnar Hertzsprung

    Russell diagram

  • Albert Einstein

    concept of mass-energy equivalence expressed by the famous equation, E = mc2

  • Edwin Hubble

    observational cosmology and is regarded as one of the most important astronomers of all time

  • Karl Jankansin

    Radio waves and milky waves.

  • Neil Armatrong

    university teacher and first man to walk on the moon

  • First Space Shuttle Launch

    fourth human spaceflight program carried out by the National Aeronautics and Space Administration, which accomplished.

  • Sputnik

    First soviet space ship made U.S. Fell doubled up.

  • Yuri Gagarin

    First human (Soviet) journey into space/orbit around earth.

  • John glenn

    he became the first American to orbit the Earth, circling it three times

  • Apollo Missions

    Designed to bring humans to the moon and back safely.

  • Mars Path Finder Expedition

    23 pound robot that was a revolutionary way transport technology and or rocks

  • Cassini Orbiter

    was named after the person that discovered rings around saturn witch it orbits around and it was used to bring data back.

  • Spacex Falcon Heavy

    Most powerful spaceship yet.