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The Science Defines Life on Mars
"I could have passed out. I really fought back and I'm not the kind of passing out really, you know, easy," she says. "It's fabulous how you react and how this is embedded in your brain from an end of evolution ... that drive to survive" The same microorganism that made the very first fossils on Earth 3.5 billion years ago are still surviving up there. On top of those volcanoes, it's about bacteria, mostly.