outer planets
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Thermoelectric Outer Planets Spacecraft (TOPS)
The proposed Grand Tour spacecraft that was replaced by Voyager (Grand Tour). According to the final report I've linked to this was just a technology development effort that was to culminate in the construction of a ground test model. But I have heard otherwise. The attached images include two...- Graham1973
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- nasa outer planets space race united states
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- Forum: Secret Space Projects