Hear stories about alien moons, cold stars, and the future of space exploration. Hosted by Dr. Carrie Nugent, it's the only show that gets NASA experts to try unusual drinks.
Dr. James Tuttle Keane discusses why Pluto probably has a huge underground ocean. To make this discovery, he used images of Pluto taken by the New Horizons spacecraft, computer simulations, and good old-fashioned pen and paper.