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Period: to
Space Exploration
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First Earth Orbiter
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First Lunar Fly By
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First Lunar Impact
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First Images of Far side of moon
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First manned obiter
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First successful Venus flyby and first successful planetary encounter
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First Mars flyby
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First Venus impact
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First lunar lander
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First lunar orbiter
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First Venus atmospheric probe
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First lunar flyby and return to Earth
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First manned lunar orbiter
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First manned lunar Landing
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First Venus lander
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First robotic lunar sample return
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First lunar rover
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first Mars impact
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first Mars lander (short-lived) and first Mars atmospheric probe
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First Mars orbiter
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first manned lunar rover
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First Jupiter flyby
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first Saturn flyby
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first Mercury flyby
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First Venus orbiter and lander; first images from surface of Venus
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Mars orbiter and lander; first long-lived lander and first pictures from Martian surface
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Closest solar approach
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Jupiter/Saturn/first Uranus/first Neptune flyby
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Jupiter/Saturn flyby, first to leave Solar System and farthest human-made object - currently more than 110 AU
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First comet flyby
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Venus flyby, first Asteroid flyby, first Asteroid moon discovery, first Jupiter orbiter/atmospheric probe/largest moons flybys
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Eros orbiter, first near-Earth asteroid flyby, first asteroid orbit and first asteroid landing
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Mars lander and first Mars rover
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First Saturn orbiter and first Titan lander
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First comet coma sample return,
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First solar wind sample return
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First comet impact
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Jupiter orbiter
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Mercury orbiters
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Joint NASA & ESA to orbit Titan, land on a lake, and will float in the atmosphere.
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Indian manned landing on Moon