My good Doctor, let us say, so far there is absolutely no evidence of life on Mars. Now we must be clear when we say “life” we are talking plants and animals of various sorts.<quoted text>I am making every attempt here to be civil. Your contention that if Mars had once possessed life we should know about it. Thats the same as someone walking to the edge of a desolate beach, scooping up some water, kicking over same sand and declaring,,,NOPE NO LIFE EXISTS HERE!!!! Hopefully you can see how stupid that is. We have a few roving probes analyzing rocks and soil, thats it. Imagine an Alien probe landing in the middle of the Sahara desert, what would the find? Two rovers on a planet basically the size of Earth, and you have concluded that there is no evidence of life on Mars? REALLY?? You might very well be right, but lets at least wait until a manned mission has spent considerable time looking for sign of life before we say NO LIFE THERE. It somewhat angers me that the only reason you make such a ridiculous and unfounded statement is because you are desperately trying to support your religious beliefs, and it has nothing to do with real discovery. And if they fine evidence of life then what will you say? Don't answer I already know....."See how God has created life even on planets other than our own"
Having lived in a desert myself. I can tell you that it is beaming with life. A different kind of life perhaps but life indeed.
Mars was very much Earth like at one time including rain showers. Lots of evidence of water but absolutely no evidence of life, so far. I know this is a disappointment to Atheist. It would be a grand slam home run if there were signs of life. We have been studying Mars not just this decade but for decades. And the scientific thought is at this time, that there’s no life there, in the past or present.
As far as manned missions to Mars. I’m completely against it. Mainly because of the cost factor. I would prefer to explore Mars in the most scientific economical way. We are doing that right now. We don’t have to send mankind to Mars when we can bring Mars to us.
Until life or remains of life is revealed on Mars. It will remain an example that life can’t simply self spawn from sterile material. The pendulum swings toward creationist Doctor when it comes to Mars.