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Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

They came from Siberia to spend the winter in warmer areas. [Photo by Zhou Guohua/For chinadaily.com.cn] Migratory birds have come in greater numbers than previous year to the Dongting Lake ...

They came from Siberia to spend the winter in warmer areas. [Photo by Zhou Guohua/For chinadaily.com.cn] ...

An asteroid streaked past northern Siberia in the middle of the night Tuesday before burning up in Earth’s atmosphere, lighting up the skies with a blinding flash, dramatic video shows.

Baby Mammoth Preserved for 50,000 Years Is Unveiled in Russia's Siberia MOSCOW (AP) — The 50,000-year-old remains of a baby mammoth uncovered by melting permafrost have been unveiled to the ...