Why the World Won't End on December 21st



Published on Dec 11, 2012
NASA is so sure the world won't come to an end on Dec. 21, 2012, that they already released a video for the day after.

More questions about December 21, 2012?http://www.nasa.gov/2012/

Visit http://science.nasa.gov/science-news/science-at-nasa/2012/14dec_yesterday/ for more.

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