The Mars Rover has detected the presence of methane in the Martian atmosphere signifying the presence of an organic process. In other words, there may be life on Mars because we can smell it farting. The life, that is, not Mars. It is, I suppose, technically possible that Mars is emitting methane (ie: farting) and blaming it on the dog. This, however, also proves there is life on Mars because, hey, dog!
What is more unlikely than there being life on Mars is there not being life on Mars or at least somewhere out there. The idea that we are all alone in the vastness of interstellar space is a notion I find hard to accept. It used to be that we had to accept that if we were to accept what the church was teaching, and of course we all want to accept what the church is teaching. Why? Because Hell sounds pretty shitty.
If you go in for that sort of thing, which I’m not sure I do, but that’s a different story. The thing about now is that the teaching (that we are the center of the universe) doesn’t fit the evidence. Moreover, I don’t want to bend the evidence to fit the lesson. I am fine with not being at the center of it all. Besides which, there is some decent thinking that would have the origin of life on this planet being Mars. So if this planet is the center of it all, and we are not from here, what are we going to do when then owner gets back? We have kind of trashed the place.