Earth's moon is a natural satellite that orbits our planet, making it the fifth largest moon in the solar system. It is about 238,855 miles away from Earth and has a diameter of about 2,159 miles. The moon has a rocky surface covered with craters, mountains, and flat plains called maria, which were formed by ancient volcanic activity. The moon plays a crucial role in Earth's environment, influencing ocean tides through its gravitational pull. It also affects the length of our days and has been a source of inspiration for countless cultures, leading to myths and stories about celestial bodies like Selene and Luna.