In this week's episode, David is joined by Lisa Kaltenegger, Professor at Cornell and Director of the Carl Sagan Institute. Lisa's new book, "Alien Earths", has just hit the shelves so we talk about what made her write this book, her view on the abundance of life in the cosmos, and her take on a couple of recent controversies in the field of astrobiology.

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Lisa’s book, “Alien Earths: The New Science of Planet Hunting in the Cosmos” https://a.co/d/iQFE2X5

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