I really, really liked this episode. Great guest. One thing that I was confused about; I thought the face on Mars was bogus. When they were able to get sharper photo's, I thought it showed that it wasn't a face at all. Just in the low resolution photo's it appeared to be a face. But if I understood John correctly, he claims that it is a face. Again, I thought the higher resolution photo's proved it to be false. So it sounds like I'm missing something perhaps?