http://www.msnbc.msn.com/id/44…..e-science/

Raul Julia's son has claimed to have found concrete evidence that ETs visited the Mayans and presumably helped with calendar causing all the 2012 nonsense.  I can't use the word nonsense enough.  Here's an exerpt from the article, which is all you really need to know:

"What is this earthshaking new evidence? The filmmakers are being coy about what exactly they have (they want you to go see the movie), but Luis Augusto García Rosado, the minister of tourism for the Mexican state of Campeche, issued a statement that contact between the Mayans and extraterrestrials is "supported by translations of certain codices." (The fact that this stunning revelation was announced by a tourism official — and not, say, a professional archaeologist or anthropologist from the Smithsonian Institution — raises suspicion that it may not be based in solid scientific research.) "

They claim to have "landing pads in the jungle".

All of this is steeped in a deep-rooted bias that ancient civilizations could not have possessed the intelligence or ingenuity needed for building some of these ancient wonders.  Frankly, it is a bit offensive.