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| History | 15,211 rep | 10 gold badges51 silver badges121 bronze badges | |
| Aviation | 14,771 rep | 6 gold badges64 silver badges157 bronze badges | |
| Space Exploration | 3,832 rep | 18 silver badges44 bronze badges | |
| Earth Science | 1,931 rep | 3 gold badges10 silver badges22 bronze badges | |
| Astronomy | 1,562 rep | 6 silver badges20 bronze badges |
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