There's being certain the world is not going to end -- and then there's being certain the world is not going to end.
A NASA astrobiologist, NASA astrophysicist and NASA program director are no match for some Mayan calendar flim-flam, hooey and poppycock.
It's a Dream Team of Debunkers, and the space agency has rolled them out in response to the rising number of calls they're receiving from panicked citizens asking if the Mayans were right and the world really is about to end due to some cosmic catastrophe.
In a video titled "Why the World Didn't End Yesterday" (which is clearly best viewed December 22, but NASA says there was enough collective freaking-out that they debuted it early) the agency kindly and non-judgementally ticks through the reasons why none of the theorized 'End of the World' scenarios is happening.
For instance, there will be no stray planet crashing into earth because "it would already be one of the brightest objects in the sky. Everybody on earth could see it," the soothing, planetarium-voiced narrator tells us.
"You don't need to ask the government. Just go out and look."
Enjoy the video and have a nice weekend.
Follow Jonathan Anker on Twitter @JonFromHLN