If we found life on another world, that would help us answer a lot of the questions we've asked in the series. The answers are what's just so exciting about the science of life is we're really just still getting started. This is the end of our origin series. We'll be back next week with an all-new episode.
For every definition of life, there’s a creature that sends us right back to the drawing board.
This is the third episode in our three-part series, Origins, about the beginnings and boundaries of life on Earth.
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