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Period: Jan 1, 1543 to
Ancient to Modern Day Space Exploration
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Jun 13, 1543
Nicolaus Copernicus publishes On the Revolutions of the Heavenly Spheres
Copurnicus published this ideas about planets orbiting the sun in in a heliocentric way. Before Copernicus, many people like Ptolemy and Aristotle thought the sun orbited the earth in a geocentric way. But Galileo also believed in heliocentrism -
Robert Goddard launches the first liquid fueled rocket
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Nazi Germany Attacks Britain with V2 Ballistic Rockets
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Soviets Launch Sputnik, Earth's first articial satellite
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US Orbits its First Artificial Satellite, Explorer
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First Weather Satellite, TIROS, is Launched by the US
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Cosmonaut Yuri Gagarin is the First Person in Space
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US Astronaut John Glenn Makes Makes first Orbital Mission Around the Earth
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Apollo 11 Mission to the Moon is the First to Land On the Moon
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Soviet Union's Robot Moon Rover 1 is Launched
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Pioneer 10 Space Probe is Launched
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Pioneer 10 reaches Jupiter. It is first space probe to reach Outer Planets
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America's Viking I Enters Mars Orbit
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Viking I Mars robotic Explorer lands on Mars
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Viking II Enters Mars Orbit
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Viking II Mars Robotic Explorer Lands on Mars
