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Space Exploration 13,619 rep 5 gold badges52 silver badges118 bronze badges
Retrocomputing 3,102 rep 3 gold badges15 silver badges41 bronze badges
Science Fiction & Fantasy 1,365 rep 1 gold badge6 silver badges25 bronze badges
Worldbuilding 1,300 rep 1 gold badge5 silver badges20 bronze badges
Physics 487 rep 1 gold badge3 silver badges11 bronze badges

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