Did you know that rock tumbling isn’t just a thing we do here on Earth in our garages or sheds? It’s actually happening right now in outer space as well. Micrometeorites and cosmic dust are constantly colliding with asteroids, which gradually wears down and smooths their surfaces over millions of years. This natural “tumbling” process can create surprisingly polished surfaces on these rocks that are hurling through space. As a matter of fact, many of the meteorites that have fallen to Earth have gone through this cosmic polishing, making them the ultimate polished stone!…