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Thales was a legendary philosopher who captured a lot of records from Egypt that would be used later on.
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He discovered that the sun was located in the center of the Universe and wanted to know the distance between the Earth and the sun.
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He created trigonometry when he was trying to figure out the sun and moon's orbits and distance to Earth.
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Claudius created a model called the Ptolemaic system that showed that the Earth was in the middle of the universe.
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Abd contributed to Ptolemy's star list with his brightness/magnitude estimates that were sometimes different from Ptolemy's.
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Omar created a calendar that would be accurate forever by watching the sky and measuring the length of a year.
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He developed his own model of the planetary system to prove that the Sun was in the middle of the universe and not the Earth.
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He built a telescope and was able to see things further like craters, mountains and valleys of the moon.
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Cassini discovered that Saturn's rings are divided and he would also measure how long Mars and Jupiter would take to rotate.
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Newton developed math to describe how the models of Copernicus and Kepler worked. He also made the law of motion and gravitation.
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Joseph discovered Helium and he knew where some solar eclipses could be seen when he would study the sun's atmosphere.
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Jan Oort discovered many things of the Milky Way like its mass and its location . He was the reason that the Oort Cloud was created.
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Robert created and launched the first liquid fueled rocket.
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Stephen used the quantum theory to prove that black holes emit radiation and evaporate.
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The Soviet Union launched the first manned satellite with a dog which was the first living passenger.
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The USSR launched Luna 1 spacecraft and even though it missed , it was the first artificial man made object to leave Earth's orbit.
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Yuri was the first man in space who completed one orbit on the spacecraft Vostok .
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John made the first U.S manned orbital flight on the third human spaceflight Mercury 6.
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Gemini 1 was a two seat spacecraft system that was launched in an unmanned flight to test it.
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Luna 9 was the first Soviet unmanned spacecraft that landed on the Moon successfully.
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The first manned Apollo mission of 11 days was the first mission in the United states to take 3 men into space.
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The two men sent out landed on the Moon and brought back 47.5 pounds of material from the Moon back into Earth.
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The Galileo unmanned spacecraft was heading into Jupiter when it passed by the asteroid Gaspra , it caught images and data.
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NASA made it's first mission to the dwarf planet Pluto and its Moons to pass 6,200 miles by Pluto.
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NASA is advancing technology and is developing the Asteroid Redirect Mission to take astronauts to Mars in 2020.
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NASA's major issue is the need for resources like food, air, and water on Mars but the transportation from Earth to Mars is too expensive.
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NASA is trying to transform aviation by reducing the noise and gases that come with aircraft engines to make it an easier flight.
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After leaving astronauts in Mars for six months and studying their environment , NASA will send humans to live there as well.
