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.
Returning guest Dr. Kelsi Singer talks about two of the icy moons of our solar system, Ganymede and Iapetus. She talks about the types of craters we see on their surfaces, and what they can teach us about the moons themselves.