Polar night

Polar night is a natural phenomenon occurring within the polar circles, where the sun remains below the horizon for an extended period—often days or weeks—during winter months. This results in continuous darkness or twilight without direct sunlight. It happens because of the Earth's tilt on its axis; during winter, the polar regions lean away from the sun. This period affects the climate, ecosystems, and daily life in those regions, contributing to the unique environment and challenges associated with living or being there during these months.