It's Darwin's 197th birthday today. I just thought I'd celebrate that by linking to a Catholic group that is offering a reward for people that can prove the Earth goes around the Sun. Why? Because they think the Sun revolves around the Earth.
Seriously. It's not a joke.
The basis for this group's geocentrism is that it must be true because the Bible says so. Which is basically the same evidence Intelligent Design creationists spout for their movement. In the mind of ridiculous Christians, scripture trumps reality, every time. That's what the whole evolution vs. ID debate boils down to: does science take observable reality as its touchstone, or one group's religious myths?
The whole idea of the Earth going around the Sun or vice versa is a mathematical convenience, of course. There is no stationary reference frame to measure movement against, a concept which the author of this challenge obviously doesn't understand. You just try telling him that.