Zoinks writes:
Life finds a way to adapt. So I don't subcribe to the theory that you need certain conditions for life to survive.
And yet we don't find life in molten lava, or the entire plasma phase of matter. We have every reason so suspect that life as we define it can only exist within a certain range of conditions. That range is wide enough that it can certainly be found elsewhere however.
Zoinks writes:
There are creatures on earth that can survive in conditions that science would concider impossible.
This makes no sense. Once we have found it, it becomes part of science and scientific knowledge.
Zoinks writes:
Recently there has also been primitive life discovered on earth that does not need oxygen to survive.
Anaerobic life isn't a new concept; ever hear of tetanus, or botulism? Those are anaerobic bacteria.
Also, life actually created the vast majority of the oxygen in our atmosphere in period called the Oxygen Catastrophe. Some organisms developed the ability to produce oxygen as a byproduct of their metabolism which was highly toxic to other organisms. This caused mass extinctions, and a great shift over toward aerobic metabolic processes. Extremely primitive life that function without oxygen would appear to be the rule for Earthly life, not the exception.
Zoinks writes:
Of course you cannot be certain that other life exists out there in the universe. The odds are increasing all the time as we learn about the mystery of the universe.
We can be certain if we find it, but regardless the odds don't change as we learn things.
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