Winter solstice begins today, here's what it means
 

http://static-global-s-msn-com.akama...=f&x=642&y=492Dec. 21 officially marks the first day of winter in the northern hemisphere. In the winter solstice, days are at their shortest and nights are at their longest. If you're in the southern hemisphere, it's the exact opposite. Let's find out why.

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