Geologists – people who study rocks – have a saying: ‘Rocks remember’. During his time, Bok has witnessed some truly wondrous things. Created in the Earth-shattering collision 4.5 billion years ago that led to the formation of the Moon, he has seen stars burst into being and meteors streak through the solar system. He has seen his own Moon surface be transformed with craters, and he has watched a fiery, volcanic planet transform into the haven we know today – as mountain ranges rose up, oceans appeared and dinosaurs roamed the Earth.




