Fascinated by the idea of extraterrestrial life? You’re not alone. An astrophysicist joins Kojo to explore the possibilities and probabilities of life on other planets, and what our fascination with it says about humankind.


  • David Grinspoon Principal Scientist, Department of Space Studies, The Southwest Research Institute; author of "Lonely Planets: The Natural Philosophy of Alien Life" (Ecco/Harper Collins)

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