BROADCASTS.com

Is there life on planets other than Earth? For generations, scientists have puzzled over the question, searching for planets that might have the right conditions both inside and outside the Milky Way. There are thousands of exoplanets \u2013 those beyond our solar system \u2013 ranging from gas giants, to balls of rock, to possible ocean worlds and so-called \u201csuper Earths.\u201d But even as new technology has given scientists a glimpse at these distant worlds, one lingering question is whether any of them can support life and what forms it might take. WSJ\u2019s Danny Lewis speaks to University of Arizona astronomer Chris Impey about what makes a planet habitable and how learning about exoplanets can teach us more about our own world.\n\n\n\nWhat do you think about the show? Let us know on Spotify, or email us: FOEPodcast@wsj.com\xa0\n\n\n\nFurther reading:\xa0\n\n\u200b\u200bA Moon of Saturn Has All the Ingredients Needed for Life\xa0\n\nJupiter Mission Launches on Journey to Explore Icy Worlds\xa0\n\nAstronomers Catch a Star Swallowing a Planet\xa0\n\nThese Scientists Want to Send Space Aliens a Cosmic Road Map to Earth\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices