Moon rock and an historic toothbrush

IN the 18th century, it was widely believed that meteorites found on Earth were pieces of the moon that had been blasted into space by volcanic eruption. We now know that almost all meteorites come from the asteroid belt and that it was the pummelling that the moon received in the early years of the formation of our solar system that allowed some chunks of moon rock to escape the moon’s gravitational influence and, periodically, find their way to Earth.