Midnight Sun

The midnight sun, also called polar day, is the natural phenomenon in which the Sun remains visible at local midnight during the summer months in regions north of the Arctic Circle or south of the Antarctic Circle. It occurs at latitudes between roughly 65 degrees 44 minutes and 90 degrees north or south, and its visible range extends slightly beyond the polar circles because of atmospheric refraction. The phenomenon is a direct result of Earth axial tilt of about 23.5 degrees, which keeps the Sun continuously above the horizon for periods ranging from a single summer night at the polar circles themselves to about six months at the poles. It is the seasonal opposite of the polar night, when the Sun stays below the horizon through the corresponding winter months. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/