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Podcast: Lucky Planet

This week on the physics central podcast I talk with David Waltham, a geologist at the University of London and the author of Lucky Planet: Why Earth is Exceptional—and What That Means for Life in the Universe. In the book, Waltham presents the evidence supporting the idea that Earth is a very rare, very lucky planet, and that there may not be another life-supporting planet in our galaxy or even in the visible universe. Waltham doesn't think we're totally alone in the universe—but he does think we are effectively alone. This debate includes information from biology, geology, astronomy, cosmology and even history. Listen to the podcast to hear some of the evidence that supports this side of the argument—and a few of the things that could prove it wrong.

Also, there are rumors flying that scientists have detected an Earth-like planet and will announce it soon.


  1. I haven't been able to listen to the last two podcasts ... Anyone else have this problem?

    1. Hey Marcelo,

      Is the embedded player in the blog post not working for you? Do you usually get our podcasts from iTunes or another service?


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