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Vattel

(9,289 posts)
12. In a way, it doesn't really matter.
Fri Dec 28, 2012, 10:01 AM
Dec 2012

Everyone already knows that there are earth-like planets out there. And everyone should know that the probability that a given earth-like planet has life on it is difficult to estimate because we don't yet know how life got started on Earth itself.

Latest Discussions»General Discussion»Earth’s twin will be disc...»Reply #12