Scientists have built a working model of Earth without any life on it and what they found might change how we search for aliens. By simulating 4.5 billion years of our planet's evolution minus every bacterium, plant, and creature that ever existed, they've created a new tool for spotting genuinely habitable worlds among the thousands of rocky planets soon to be studied by the next generation of space telescopes.
Scientists have built a working model of Earth without any life on it and what they found might change how we search for aliens. By simulating 4.5 billion years of our planet's evolution minus every bacterium, plant, and creature that ever existed, they've created a new tool for spotting genuinely habitable worlds among the thousands of rocky planets soon to be studied by the next generation of space telescopes.
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