NASA: World Won't End on Dec. 21

Does the talk of Dec. 21 give you chills? Do you believe that the Mayan calendar predicts our demise? 

NASA scientists aren't worried. 

According to the NASA website, the only thing that will happen on Dec. 21 -- Friday -- is the winter solstice. 

The website also compared the lack of dates on the Mayan calendar to the lack of dates on current calendars.

"Just as the calendar you have on your kitchen wall does not cease to exist after December 31, the Mayan calendar does not cease to exist on December 21, 2012. This date is the end of the Mayan long-count period but then--just as your calendar begins again on January 1--another long-count period begins for the Mayan calendar."

Of course, those screaming "doomsday" are getting far more attention than NASA. 

The official Dec. 21, 2012 website even claims to have celebrity supporters such as Woody Harrelson, Mel Gibson, Ashton Kutcher and Shirley MacLaine. 

The Dec. 21, 2012 website also alleges that a galactic problem will cause the world to end--something the scientists at NASA refute..