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Physics, Astronomy & Cosmology / Re: What's The Real Probability Of Life Existing Elsewhere In The Universe?
« on: 03/08/2016 10:38:00 »Quote from: Solium
Without knowing what was the spark of life on Earth, (assuming life started here and wasn’t transferred from someplace else) can we really surmise it ever happened a second time in the Universe?Without knowing what was the spark of life on Earth, can we really surmise it didn't happen a second time in the Universe?
That is the problem with only knowing 1 solar system, which only has 1 planet in the Goldilocks zone. It doesn't give a basis to estimate the probability of it happening elsewhere.
But if we find water-soluble life outside the Goldilocks zone (eg Europa), that also changes the statistics.
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