during the Apollo 12 mission, a 2 1/2 ton piece of the Lunar Module was experimentally crashed onto the surface of the moon. The unexpected result? The moon “rang like a bell” for nearly an hour.

during the Apollo 12 mission, a 2 1/2 ton piece of the Lunar Module was experimentally crashed onto the surface of the moon. The unexpected result? The moon “rang like a bell” for nearly an hour.