The moon is shrinking. 10,000 cracks on the lunar surface reveal by how much

The moon is shrinking, and scientists are narrowing in on exactly how much our natural satellite has dwindled over the years.

The moon is thought to have formed from a violent collision between a massive object and our young Earth roughly 4.5 billion years ago, and its interior is still gradually cooling off from this ancient collision. As it cools, the moon contracts, leading to a long, slow shrinking process. Now, in a new study, scientists think that they have figured out how much smaller the moon is actually getting.

In this new study, scientists analyzing images snapped by the Lunar Reconnaissance Orbiter Camera (LROC) have spotted over 10,000 young faults, or cracks across the moon's surface. This helped them to figure out how much the moon has contracted over time, and they now estimate that the moon's radius has decreased by about 148 feet (45 meters) over the past 400 to 800 million years.