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explored venus's atmosphere
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sent back photos of jupiter and first probe to encounter an outer planet
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obtained first good images of the surface of mercury
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orbiter mapped the surface of mars; searched for life on mars
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took picture of venus
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took photo of neptune, and went toward the edge of the solar system
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mapped venus's surface and returned data on the composition of venus's atmosphere
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imaged craters, lava domes, and great rifts, or cracks, on the surface of venus
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arrived at jupiter and sent bach pictures