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He studied under the great philosopher Plato and later started his own school known as the Lyceum at Athens.
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Considered the Earth to be the center of the universe.
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Copernicus said that the planets revolved around the sun, and made a model of his idea of the solar system.
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Tycho Brahe was an astronomer who made a model that helped the belief of a heliocentric universe.
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Galileo was known for his improvements on the telescope. He also investigated the laws of motion.
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Hans Lippershey was a Dutch eyeglass maker who many historians believe was the inventor of the first telescope and is also sometimes credited with the invention of the microscope.
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Johannes kepler is a widely known figure in the 17th-century scientific revolution. He is famous for his laws of planetary motion. Stated that planets revolve in an oval-like shape known as an elliptical pattern.
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Giovanni Domenico Cassini noted the division of rings on saturn.
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He developed the three laws of motion.
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Known for finding the planet Uranus.
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Best known for stating the possibility of life on Mars.
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Along with Henry Norris Russell, he developed the Hertzsprung–Russell diagram.
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Developed the Theory of Relativity and made impacts on science and philosophy today.
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Edwin Powell Hubble played an important role in establishing the fields of extragalactic astronomy and observational cosmology.
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he was the first to discover radio waves emanating from the Milky Way.
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Sputnik 1 was the first artificial Earth satellite. The Soviet Union launched it into an elliptical low Earth orbit on the 4th of October in 1957.
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He was the first American to orbit the Earth, circling it three times in 1962.
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first space program that succeeded in landing the first humans on the Moon from 1969 to 1972.
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First human to journey into outer space.
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First person to walk on the moon. Known for the quote, "One small step for man, one giant leap for mankind."
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Launched on April 12th, 1981.
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Mars Pathfinder is an American robotic spacecraft that landed a station with a roving probe on Mars.
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collaboration between NASA, the European Space Agency, and the Italian Space Agency to send a probe to study the planet Saturn and its system, including its rings and natural satellites.
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China Lands on far side of the moon in early december, and lands at 10:26 am.
