Space Exploration 13,399 rep 25 silver badges135 bronze badges
Physics 4,637 rep 5 gold badges34 silver badges65 bronze badges
Biology 3,849 rep 1 gold badge21 silver badges40 bronze badges
Electrical Engineering 2,821 rep 8 gold badges30 silver badges49 bronze badges
Amateur Radio 2,734 rep 2 gold badges16 silver badges42 bronze badges

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