It's not too surprising that the Earth is so hospitable to life — we would never have evolved enough to wonder about it if it weren't. But when you start to look at all of the things that have come together in just the perfect way to support plants and animals, it gets a little mind-boggling. It's not just about air, water, and distance from the sun. Here are the nine ingredients for a habitable planet.
The Recipe for Life
Rare or Mediocre?
Written by Reuben Westmaas March 30, 2018
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