Search our collection of background (non-event) articles from news media, science journals and other sources.
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59 | ||
40 | ||
32 | ||
31 | ||
26 | ||
25 | ||
15 | ||
9 | ||
9 | ||
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6 | ||
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1 | ||
1 | ||
1 | ||
1 | ||
1 |
49 | ||
45 | ||
39 | ||
35 | ||
29 | ||
25 | ||
23 | ||
23 | ||
23 | ||
20 | ||
15 | ||
10 | ||
10 | ||
9 | ||
9 | ||
8 | ||
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7 | ||
5 | ||
4 | ||
3 | ||
2 | ||
1 | ||
1 |
44 | 170 |
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31 | 13 | 15 | 23 | 22 | 21 | 32 | 13 | 20 | 24 |
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SUMMER | 16 | |
WINTER | 13 | |
SPRING | 7 | |
FALL | 5 |
United States | 82 | |
Canada | 13 | |
Russia | 7 | |
Iceland | 2 | |
Norway | 2 | |
China | 1 | |
Italy | 1 | |
Sweden | 1 |