Question of the Week Podcast

Question of the Week episode

Sun, 16th Sep 2012

Has Life Only Started on Earth Once?

DNA fragment (c)

Earth seems like such a good place for life to thrive, so is it a good place for life to get started?  Has life started on Earth more than once?  If so, where is it?

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  • Has life only started once on Earth?

    If Earth is such a great place to live, why to our knowledge has life only begun once on this planet? Obviously, the conditions on Earth are sufficient to support life. But beyond that, we repeatedly hear the assertion that these are the "ideal" conditions for life. If...

 

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