ScienceCasts: Why the World Didn't End Yesterday

From the creator

The Mayan calendar explained! The world is safe from rogue planets, solar flares and other imagined calamities! Watch this NOW to learn why NASA Science says you'll be here Dec. 22 to view it again! Visit http://science.nasa.gov/ for breaking science news.

Published 2012-12-11 · Watch on YouTube ↗
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