Do Space Aliens Need Baptism? The View From Gliese 581g
…r freezes. Astronomers—wits ever—have come to call this region the Goldilocks zone (not too hot, not too cold…). It turns out that we live near the center of the Sun’s Goldilocks zone, and Venus and Mars also occupy it but sit close to its inner and outer edges, respectively. (If these planets’ atmospheres had evolved differently, they too would be able to support liquid water.) The search for life on other planets has been ongoing for a long time…
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