Search our collection of background (non-event) articles from news media, science journals and other sources.
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34 | ||
34 | ||
19 | ||
18 | ||
17 | ||
13 | ||
12 | ||
9 | ||
7 | ||
5 | ||
3 | ||
2 | ||
1 | ||
1 |
110 | ||
48 | ||
48 | ||
29 | ||
27 | ||
14 | ||
10 | ||
9 | ||
9 | ||
7 | ||
7 | ||
5 | ||
5 | ||
4 | ||
3 | ||
2 | ||
2 | ||
2 | ||
1 | ||
1 | ||
1 | ||
1 | ||
1 |
17 | 62 | 31 |
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18 | 6 | 9 | 11 | 14 | 12 | 2 | 7 | 10 | 9 | 9 | 3 |
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SUMMER | 15 | |
WINTER | 13 | |
SPRING | 12 | |
FALL | 9 |
United States | 58 | |
Canada | 6 | |
Russia | 3 |