Search our collection of background (non-event) articles from news media, science journals and other sources.
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10 | ||
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5 | ||
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51 | ||
32 | ||
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12 | ||
9 | ||
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1 | 7 | 34 | 9 |
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9 | 2 | 5 | 4 | 3 | 2 | 3 | 7 | 5 | 2 | 4 | 5 |
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SUMMER | 8 | |
WINTER | 8 | |
SPRING | 4 | |
FALL | 2 |
United States | 32 | |
Iceland | 2 | |
Norway | 2 | |
Russia | 2 | |
Canada | 1 |