Search our collection of background (non-event) articles from news media, science journals and other sources.
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1 | 41 | 18 |
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5 | 1 | 11 | 8 | 5 | 8 | 2 | 6 | 5 | 5 | 2 | 2 |
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SPRING | 9 | |
SUMMER | 9 | |
FALL | 2 | |
WINTER | 2 |
United States | 27 | |
Canada | 5 | |
Norway | 3 | |
Ireland | 1 | |
Russia | 1 | |
Spain | 1 |