We place sharks in aquariums and elephants in zoos – to observe and conserve. But what if aliens have done the same to us? We’ll hear from Stephen King on a doomed result of a domed experiment - hatched by off-Earth beings, and why captivity may actually save some species on this planet.Plus, you’re entering the Habitable Zone: which is the best bet for life elsewhere in the Solar System - Europa, Enceladus or Mars?Guests: Stephen King - Novelist, author of Under the Dome: A Novel Jim Kasting - Geoscientist, Penn State University and author of How to Find a Habitable Planet (Science Essentials) Oliver Morton - Journalist, author of Eating the Sun: How Plants Power the Planet John Fraser - Director for the Institute for Learning Innovations and Adjunct Assistant Professor at Hunter College CUNY Amanda Hendrix - Planetary Scientist, NASA Jet Propulsion Laboratory Bob Pappalardo - Planetary Scientist, NASA Jet Propulsion Laboratory Descripción en español Learn more about your ad choices. Visit megaphone.fm/adchoices