Crater counting

Crater counting is a method used by scientists to estimate the age of a planetary surface by counting the number and size of impact craters. Because celestial bodies accumulate craters over time from space debris, more craters generally indicate an older surface. Researchers analyze high-resolution images to identify and measure craters, then use models to relate crater density to age, providing insights into the planet or moon’s geological history. This technique helps us understand planetary development and surface processes over millions or billions of years.