Loon's Elevator, also known as a lunar space elevator, is a proposed megastructure that would connect the surface of the moon to a geosynchronous satellite orbiting the Earth-Moon system. The elevator would be a cable-like structure, tens of thousands of kilometers long, with a counterweight at its orbital end. This counterweight would be positioned at a Lagrange point, a gravitationally stable location where the gravitational forces of the Earth and the Moon balance each other.