Welcome to Scratching the Surface with Caitlin Ahrens, the Pluto Manager at the Center for Space and Planetary Science. Earth is the only terrestrial planet with a moon. Our moon is responsible for tides, the length of our day, and the stability of Earth's axial tilt. In today's episode, Caitlin explains what would happen if Earth had a second moon.
For more on the Center for Space and Planetary Science, visit spacecenter.uark.edu
