Today I was looking for some information about the Feast of Our Lady of Guadalupe, December 12, which also happens to be my wedding anniversary. I happened upon an interesting website on the subject. The author carefully considers all of the information available about the famous, miraculous image of Our Lady of Guadalupe, including some reported chemical analysis of the pigments and digital analysis of close-ups of the eyes, and (rejecting the "theological explanation" as irrational) concludes:
The creation of the Guadalupe image was not due to the effects of the immediate and miraculous influence of the Virgin Mary or God.
Since the image nevertheless exists, and since there are the specific features mentioned above, nothing more remains than the possibility that we—contrary to the declarations made by theology—are dealing with a very rational and explainable event, even if every detail has yet to be explained.
In other words, the projection of the Virgin Mary image by strange, and most likely extraterrestrial technologically advanced intelligences.
That’s right: It was aliens!
Even if one does not believe in the Guadalupe apparition—and to my knowledge, Catholics are not required to believe in it or in any other private apparition—this is fun to read. Most people inclined to be skeptical about Marian apparitions would simply assume that the story was invented and the image a carefully crafted fake. This author, on the other hand, accepts unquestioningly the traditional (and fascinating) story of Juan Diego, the reported apparition, and the genuineness of the miraculous image; he just thinks it was caused by ETIs, which are, I suppose, the new UFOs.
The logic he uses to prove that God didn’t do it is good too, guaranteed to amuse both believers and skeptics.
Google cache of a page listing pictographic elements of the image
bearing blog 
