Is there life on other planets? On this episode of StarTalk, Neil deGrasse Tyson and co-host Matt Kirshen dig into the search for extraterrestrial life with exoplanet expert and author of the memoir, “Smallest Lights in the Universe,” astrophysicist Sara Seager.

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Shown: High-resolution still illustration of the potential exoplanet WD 1856 b with its host star. Credit: NASA, Goddard Space Flight Center.