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Alarmed-Wolf14 t1_j8676yk wrote

This thought messes with me. A human is made of multiple types of life that act on its own what if all of this is part of something else that’s more complex than we can ever imagine just like we have cut bacteria and blood cells that could never comprehend our existence.

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RollinThundaga t1_j89aoyh wrote

All of those bits of life acting on their own require liquid water, a gaseous atmosphere, and a certain temperature range to exist.

So, if we find liquid water and a certain temperature range on another planet, it's more likely we'll find life there than on, say, the scorching hot/near absolute zero, radiation blasted vacuum of Mercury.

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