Incredible New Map of Moon Shows Its Every Nook and Cranny
The colors divide the map into geologic units; scientists divide the Moon’s geologic history into a different eras, so a color represents the kind of rock and its era. For example, yellow on the map represents Copernican craters—the rim, wall, and floor of bright material from the Moon’s Copernican period, which lasted from a billion Read more about Incredible New Map of Moon Shows Its Every Nook and Cranny[…]