Astronomers

By Yerca66
  • Period: 1473 to 1543

    Nicolaus Copernicus

    Copernicus was a Polish astronomer and mathematician. He proposed the heliocentric model, stating that the Sun, not Earth, was at the center of the solar system. His book, "De Revolutionibus Orbium Coelestium," published in 1543, presented his revolutionary ideas.
  • Period: 1564 to

    Galileo Galilei

    Galileo was an Italian astronomer, physicist, and mathematician. He improved the telescope and made observations that supported the Copernican heliocentric model. Galileo's discoveries, including the moons of Jupiter and the phases of Venus, challenged traditional astronomical beliefs.
  • Period: 1571 to

    Johannes Kepler

    Kepler, a German astronomer and mathematician, formulated three laws of planetary motion. His laws describe the elliptical orbits of planets around the Sun. Kepler's work laid the foundation for Isaac Newton's theory of universal gravitation.
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    Isaac Newton

    Newton was an English physicist, mathematician, and astronomer. He formulated the laws of motion and the law of universal gravitation. Newton's work in celestial mechanics explained the motion of planets and objects in the universe.
  • Period: to

    William Herschel

    Herschel, a British astronomer and composer, discovered Uranus in 1781. He built large telescopes and made extensive observations of the night sky. Herschel's work expanded the known boundaries of the solar system.
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    Caroline Herschel

    Herschel was a German-born British astronomer. She discovered several comets and cataloged star clusters and nebulae. Caroline Herschel was the first woman to receive formal recognition for her scientific contributions.
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    Edwin Hubble

    Hubble was an American astronomer and cosmologist. He provided evidence for the expansion of the universe and formulated Hubble's Law. Hubble's observations helped establish the concept of the Big Bang and the existence of other galaxies.
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    Vera Rubin

    Rubin, an American astronomer, provided evidence for the existence of dark matter. Her observations of galaxy rotation curves showed that galaxies were held together by unseen mass. Rubin's work revolutionized our understanding of the universe's composition.
  • Period: to

    Carl Sagan

    Sagan, an American astronomer and science communicator, popularized astronomy through his TV series, "Cosmos." He conducted research on planetary science, exobiology, and the search for extraterrestrial life. Sagan's contributions inspired millions to develop an interest in astronomy and space exploration.
  • Andrea Ghez

    Ghez is an American astronomer known for her groundbreaking research on the center of the Milky Way. She led a team that provided strong evidence for the existence of a supermassive black hole at the galaxy's core. Ghez's work contributed significantly to our understanding of black holes and their role in galaxy formation.