Can you pass this 1970s quiz?
1970s
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Which spacecraft was the first to circle another planet?
Mars 5 Mariner 9 Apollo 2 Mariner 1
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Puzzles
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There are 3 houses. The green house is in front of the brown house. The brown house is in the back of the green house. Where is the white house?
1980s
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The arrival of which comet in 1986 was met by a series of American, Soviet, Japanese, and ESA probes?