Earth’s axial tilt

Earth’s axial tilt is the angle between its rotational axis and the perpendicular to its orbital plane, approximately 23.5 degrees. This tilt causes the distribution of sunlight to change throughout the year, creating the seasons. When one hemisphere is tilted toward the Sun, it experiences summer with longer days and more direct sunlight, while the opposite hemisphere has winter. The tilt remains relatively constant as Earth orbits the Sun, resulting in cyclical seasonal variations. In essence, Earth's tilt is responsible for the variation in climate and daylight we experience across different times of the year.