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galileo uses a telescope for astronomical observations.
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Kepler discovers laws of planetary motion
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Christian discovers that the "appendages" of saturn are rings"
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he discovers that stars move throughout space.
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He discovers Uranus
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uses star counts to map milky way
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He estimates age of the sun
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Finds the size and shape of the milky way
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Began with Sputnik being launched into orbit
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Neil Armstrong is the first man on the moon
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a twenty million dollar got him to go into space with the help of the russians, the us declined his offer
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