Japan's unmanned spacecraft "SLIM" successfully landed on the moon last month. The rocks were given dog names such as "Toy Poodle" and "Tosainu" The team is currently analyzing whether the moon is olivine, a mineral that once existed inside the rock.

Future prospects will be to explore how the moon was formed, and if there's a big demand for a mineral inside it, I might consider it, says Kazuto Saeki, director of the Space and Earth Exploration Research Center.