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Pioneer 10's mission was to reach Jupiter. Pioneer 10 sent back photos of Jupiter. It was the first probe tp reach an outer planet.
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First Person to travel Space.
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Alan B. Sheapard was the first American in Space.
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John Glenn became the first person to orbit the Earth.
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Mariner 2's destination was to Venus. It affirmed that high temperatures were in venus's atmosphere.
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Neil Armstrong was the first person to walk on the moon.
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Viking 1's destination was to Mars. It's Orbiter mapped the surface of Mars
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the Hubble SpaceTelescope was launched by the space shuttle Dicovery in 1990. Becuase of its orbit Earth's atmosphere it should have produced clear images but it made a mistake of the way the telescope was made.