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Period: to
Space Travel Time
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First Earth Orbiter
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First Lunar Orbiter
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First Lunar Impact
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First Images Of Far Side Moon
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First Maned Earth Orbiter
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First Maned Lunar Rover
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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 (contact lost)
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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 Returned to Earth
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First Maned Lunar Orbiter
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First Manned Lunar Landing
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First Mars Orbiter
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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 Jupiter Flyby
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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
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First Images from surface of Venus
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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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First to leave Solar System and Farthest Human-made object, curently more Than 110 AU
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First Comet Flyby
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First asteroid Flyby, First Asteroid Moon Discovery, First Jupiter Orbiter/ atmospheric Probe/ Largest moons Flyby
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First Mars Rover
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First comet impact
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First Pluto/Charon and Kuiper Belt flyby
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Human mission to Mars