NASA Debunks 2012 Doomsday, Mayan Calendar Theories

NASA is hoping to soothe doomsday fears by explaining there is no known threat associated with the end of the world.

Save videos for later by signing up or logging in

With "My Queue" you can quickly save videos to watch later.

To add an item to your queue just click the sign next to the video.

Once you've added a video visit "My Queue" to start watching!