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Why does the Moon have no seasons?
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Moon
(Left) Near side of Earth's Moon, photographed by the Galileo spacecraft on its way to Jupiter. (Right) Far side of the Moon with some of the near side visible (upper right), photographed by the Apollo 16 spacecraft.
The Moon does not experience seasons because its spin axis is nearly perpendicular to the plane of the ecliptic—the plane of Earth’s orbit around the Sun.1
While Earth’s axis is tilted at approximately 23.5°, which causes different hemispheres to receive varying amounts of direct sunlight throughout the year, the Moon’s axis is inclined only about 1.5° from the vertical. Because of this minimal tilt, the Moon does not undergo the significant changes in solar angle or day length that create seasonal cycles on Earth. Consequently, sunlight remains nearly horizontal at the lunar poles, resulting in permanently cold and dark environments within deep craters.12