Now that Nasa scientists have found evidence of liquid water flowing on mars, would it be possible to introduce some forms of vegetation to produce oxygen there ?
average martian temperature is -60 so if liquid water is present it must be very localised, perhaps planetary heat of some description or weather somehow can get above 0 but that would need to be thoroughly understood first.
Carbon dioxide appears to be one of the largest components, 95. 32 percent.
Single celled stromatolites, like those found in shark bay Australia, believed to be one of the early colonisers on Earth, may be a viable option.
I think this is a very exiting time in history.
Some good/interesting points, Andy, and food for thought!
I don't think even the scientists know very much about Mars yet, it all seems to be based on what is known about here on earth.