Explore the cosmic evolution of all things including symbiogenesis, the geopolitical state, the Gaia hypothesis, and more, featuring astrobiologist David Grinspoon, comic co-host Chuck Nice, and biologist and author Tyler Volk.
NOTE: StarTalk All-Access subscribers can watch or listen to this entire episode commercial-free here: https://www.startalkradio.net/all-access/cosmic-evolution-with-david-grinspoon/
Image Credit: NASA Goddard Space Flight Center Image by Reto Stöckli (land surface, shallow water, clouds). Enhancements by Robert Simmon.
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