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History of Astronomy

By chemhour1
  • 5000 BCE

    The Big Bang

    13.7 billion years ago all the matter in the Universe was concentrated into a single incredibly tiny point. This began to enlarge rapidly in a hot explosion.
  • 3100 BCE

    Stonehenge

    Stonehenge is the most architecturally sophisticated and only surviving lintelled stone circle in the world.
  • 322 BCE

    Aristotle

    Aristotle was an ancient Greek philosopher and scientist
  • 230 BCE

    Aristarchus

    Ancient Greek astronomer and mathematician who presented the first known model that placed the Sun at the center of the universe and had the earth revolving around it.
  • 194 BCE

    Eratosthenes

    Eratosthenes of Cyrene was a Greek mathematician, geographer, poet, astronomer, and music theorist.
  • 120 BCE

    Hipparchus

    was a Greek astronomer, geographer, and mathematician. He is considered the founder of trigonometry
  • 168

    Ptolemy

    a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet
  • 1543

    Nicholas Copernicus

    Nicolaus Copernicus was a Renaissance- and Reformation-era mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe

  • Tycho Brahe

    Danish nobleman known for his accurate and comprehensive astronomical and planetary observations.

  • Johannes Kepler

    German mathematician, astronomer, and astrologer.

  • Galileo Galilei

    Italian polymath: astronomer, physicist, engineer, philosopher, and mathematician.

  • Christiaan Huygens

    was a prominent Dutch mathematician and scientist. He is known particularly as an astronomer

  • Giovanni Cassini

    Italian mathematician, astronomer, astrologer and engineer

  • Isaac Newton

    English mathematician, astronomer, and physicist who is widely recognised as one of the most influential scientists of all time

  • Annie Cannon

    American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification

  • Edwin Hubble

    American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time.

  • James Van Allen

    American space scientist at the University of Iowa. He was instrumental in establishing the field of magnetospheric research in space.