Crismon_History of astronomy

By ItsKittyPop
  • 322 BCE

    Aristotle

    Aristotle
    384-322 Aristotle born in Greece, he was a scientist and philosopher, was a student of Plato, Alexander the great became his student. He made more than 200 works, these works include scientific studies,observations, and poetry.
  • 168

    Ptolemy

    Ptolemy
    100-168 Ptolemy wrote the Almagest. He was an astronastronomer, geographer, and mathematician. He thought that the earth was the in the middle of the universe.
  • 1543

    Copernicus

    Copernicus
    1473-1543 Copernicus was an astronomer, mathematician and scientist. He thought the sun was in the middle of the universe, instead of the earth.

  • Tycho Brahe

    Tycho Brahe
    1546-1601Tycho Brahe was an astronomer who worked as a developing astronomical instruments. Tycho Brahe made the Tychonic system. The Tychonic system was a model of the solar system.

  • Hans Lippershey

    Hans Lippershey
    1570-1619 Hans Lippershey was a German-Dutch spectacle-maker. He created the first telescope and many believed he also made compound microscope.

  • Johannes Kepler

    Johannes Kepler
    1571-1630 Johannes was a German astronomer, mathematician, and astrologer. Many people think he was the key for the 17th-century scientific revolution. He discovered Kepler conjecture, Kepler's laws of planetary motion, and Rudolphine Tables.

  • Galileo

    Galileo
    1564-1642 Galileo was an Italian astronomer, physicist and engineer, who invented the Scientific method , along with other observations that supported Copernicanism.

  • Giovanni Cassini

    Giovanni Cassini
    1625-1712 Giovanni Cassini was Italian mathematician, astronomer and engineer. He was known for discovering 4 satellites on Saturn and wrote down how many rings are on Saturn.

  • Sir Isaac Newton

    Sir Isaac Newton
    1643-1742 He was developed Copernicus and Kepler, he invented the Reflecting telescope.

  • William Herschel

    William Herschel
    1738-1822 William Hershel found the planet Uranus and all its moons, and two more of Saturn's moons. Many people also think that he founded ice on Mars.He invented the infrared light and electromagnetic spectrum.

  • Percival Lowell

    Percival Lowell
    1855-1916 Percival Lowell was a man who discovered Pluto. He also made Lowell Observatory in Flagstaff to study Mars.

  • Karl Jansky

    Karl Jansky
    1905-1950 Karl Jansky Discovered Radio waves that are from space. Later found out that radio waves are the longest type of energy waves.

  • Edwin Hubble

    Edwin Hubble
    1889-1953 Edwin Hubble used the color of stars, and discovered the Universe is expanding. He found that the galaxies are moving away from each other.

  • Albert Einstein

    Albert Einstein
    1879-1955 Albert Einstein made a theory about Relativity and gravity.

  • Sputnik

    Sputnik
    1957 Sputnik is a satellite. In the middle of the Cold war, Russia was successful in launching the first satellite into space to orbit Earth.

  • Yuri Gagarin

    Yuri Gagarin
    1961 Was the first human to orbit the Earth

  • John Glenn

    John Glenn
    1962 John Glenn was the first U.S Citizen to orbit Earth

  • Ejnar Hertzsprung

    Ejnar Hertzsprung
    1873-1967 Ejnar Hertzsprung is one of the inventors in the Hertzsprung Russel diagram. It shows the correlation between temperature, and absolute magnitude.

  • Neil Armstrong

    Neil Armstrong
    1969 Neil Armstrong walked on the moon

  • The Apollo Program

    The Apollo Program
    1963-1972 The Apollo Program was designed to land people on the Moon and bring them back to Earth

  • First Space Shuttle flight

    First Space Shuttle flight
    1981 First Space Shuttle flight was a program was the fourth human spaceflight

  • Mars Pathfinder Expedition

    Mars Pathfinder Expedition
    1996

  • Cassini orbiter

    Cassini orbiter
    1997 Cassini orbiter Cassini orbiter was a mission to study the planet Saturn, and its rings.