History 15,181 rep 10 gold badges51 silver badges121 bronze badges
Aviation 14,915 rep 5 gold badges62 silver badges151 bronze badges
Space Exploration 3,802 rep 18 silver badges44 bronze badges
Earth Science 1,911 rep 3 gold badges10 silver badges22 bronze badges
Biology 1,321 rep 1 gold badge9 silver badges16 bronze badges

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