An interesting question for you all:

A co-worker of mine, out on the weekend at a campsite, looked up at the moon and noticed a strange red circle in the sky near the moon. He grabbed his camera and took several pictures and had his wife and kids verify that he was not seeing things.

http://www.totedata.com/mars.jpg

The quality of the picture is not the best, but it demonstrates what he saw (moon is on the left, red globe on the right). The moon was fairly large, near the horizon, and it was his claim that "that must be Mars!". I assured him that it was not (and could not be, for several reasons), and must have been some consequence of a lens-type effect of the atmosphere casting a shadow of a red moon some distance to the right of where it actually was.

Does anyone have an explanation for how this would occur (or has even seen it before)? Looking at the picture, I am very certain that this is a copy of the moon somehow reflected off the atmosphere (dust or something?). If anyone has a theory or has seen this before, I'd love to hear it.