Sobre el 21 de diciembre...

Publicado el 11/12/2012

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.