Hints: NASA Mars organism Earth Microbe Chris McKay

These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is NASA's leading microbe expert. He believes that finding even these minute organisms would be of the utmost importance. If we find life on Mars, what we're almost certainly gonna find are microbes, little tiny microscopic organisms. You think, well, what's the big deal? Well in fact for most of Earth's history, all the life was on Earth was microbes. And so going to Mars and even finding the smallest, dumbest, littlest bug will still be important because it'll tell us that here in our own back yard life started twice. And so the hard part is possible. The evolution into intelligence and, and humanlike beings is pretty straightforward compared to the question of could it get started. And there is something about microbes that makes them well suited to surviving on Mars. They're incredibly tough.

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