Can you pass this 1980s quiz?
1980s
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The arrival of which comet in 1986 was met by a series of American, Soviet, Japanese, and ESA probes?
Comet Kohoutek Borrelly's Comet Halley's Comet Comet Encke
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Science
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How many Earth widths is the Moon away from Earth?
1970s
4.44 M  Players
Which former U.S. President died in 1973?