The Story of the Solar System

There's no controversy about whether collisions from asteroids on planets can knock stuff off into outer space and have it land on other planets. Whether there's life in those rocks that then seeded life on earth totally open question. We're looking for moons in other solar systems to try to discover if the distribution of moons that we have is strange or pretty typical in the universe. There are hundreds of minor planets deep out there in the solar system that do have their own moons like pluto.