Imagine one of the driest places on Earth, where more complex life forms are barely present, yet a rich microbial world bustles just beneath the surface. This is the Atacama Desert in Chile, a harsh ...
More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas were acidic and rich in iron, and volcanic activity roared across a barren ...
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