Life in Our Universe

Common Themes for All Life on Earth

S1 • E7    May 7, 2012    30m
Now that you have covered the key elements necessary for life to exist, take a closer look at the things all life on Earth shares. Learn why the Biosphere 2 experiment in the 1990s failed, examine the behavior of microbes—the most important constituents of our biosphere—and trace life back to your universal ancestor.

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