The lunar poles have spots that are always sunny. These spots are called “peaks of eternal light” but the light is not eternal and the name is quite misleading. The areas are only lit for about 90 percent of the Moon’s 18.6-year nutation cycle. Of the top 20 sites on the Moon that are illuminated by the sun, seven of them are located near the North Pole. This is because the North Pole has a longer period of sunlight than the South Pole.

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