When you think of ice, you might imagine glaciers, the North Pole, a clink in your water glass. But it turns out that our closest neighbor in space isn’t just a dusty ball—the moon has ice tucked away in deep craters at each of its poles. On top of that, scientists think the moon stole its ice: from comets, asteroids, maybe even from the Earth. We talked with two scientists—Kathleen Mandt and Nicholas Hasson—who are studying how the moon snagged its ice and how astronauts might use that ice on future missions.

This episode was produced by Sara Whitlock and mixed by Collin Warren. Editing and production assistance by Jace Steiner.