A full moon occurs when the Moon is on the opposite side of the Earth from the Sun, allowing its entire illuminated surface to be visible from our planet. This phase happens approximately once every 29.5 days, marking the midpoint of the lunar cycle. During a full moon, the Moon appears as a bright, round disk in the night sky. The full moon has been significant in various cultures and traditions, often associated with mythology, tides, and agriculture. It can influence natural phenomena, such as the gravitational pull on Earth's oceans, leading to higher tides known as spring tides.