How to Use a Satellite Navigation System on the Moon

This episode's main problem comes from Phil Thomas, who asks what would happen if you tried to use a GPS sat nav on the moon. Matt Bellini: I know how much you like GPS is, Big fan. Love a good GPS. And I'd never thought would a GPS unit work, not on earth. So obviously they work on earth. But could you take an earth global positioning system set up? And could you take that to the moon and would it still work?