NASA Research Finds That Alien Life Could Be Breathing Iron

This article was originally posted on Inverse. By Adam Toobin Don’t hold your breath, but oxygen may not be as essential to biological life as we once thought. A pair of new papers are demonstrating how certain microbes have evolved the ability to suck the energy out of iron, much like we do with oxygen. The tiny creatures have long existed in the cracks of the earth and could shed light on the origins of life on our planet. And maybe other planets, too. The NASA-funded research exposes the tremendous diversity of life on Earth and raises the possibility that

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