The universe is a cold, dark place. For a planet to support life, it has to be extremely lucky: close enough to its home star to keep water from freezing, far enough away to keep it from boiling off. We've only found a handful of planets that sit in this "habitable zone," and we don't know if any contain life. But what if it's not the place that's important, but the time?
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Written by Ashley Hamer January 26, 2018
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