[Utah-astronomy] second thoughts

Rob Ratkwski sent me a great photo of "moqui balls" or moqui marbles that he collected near Kanab. I have to admit, there is an amazing similarity, though they are on a different scale (the Mars "blueberries" are much smaller). I gather some scientists believe these were formed by natural processes involving groundwater and iron. So maybe what I have been so excited about is nothing more than another indication of water on irony old Mars. -- Best wishes, Joe