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Dr. John Brandenburg: Confessions of a NASA Space Scientist

Earth Ancients

00:00

The Evidence for Microbes on Early Mars

"I watched him just get pummeled unfairly by people from the audience," he says. "A bunch of college professors basically" The team found traces of bacterial fossils in Mars and Earth rocks that are very, very ancient. Just about the time we had a liquid ocean, we had life in it.

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