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Re: Life IN space
It's all a bit thin.
Life as we know it depends on chemical reactions. Chemical reactions depend on different chemicals bumping into one another. That means they need to be free to move. They have to be dissolved in a liquid, or dispersed as a gas.
Space can't contain free liquids and only contains the thinnest of gasses. Worse light pressure and solar wind sweep gas away from stars - that is if a planetary body doesn't capture it first. The only stable gas in space is interstellar. Where would the energy to drive life come from if not from a close star?
There are exceptions. Comets emit gas when they get close to the sun. That is the source of their tails. Asteroids can have water trapped inside rocks. But is there enough here to support the evolution of life? I think not.
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