Season: Quick Facts

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Photos and Videos

Four-panel image showing the same ash tree in different seasons: budding in spring, full green leaves in summer, turning leaves in autumn, and bare with snow in winter.

Diagram showing Earth's orbit around the Sun with labeled positions for the summer solstice, winter solstice, vernal equinox, and autumnal equinox, illustrating how Earth's tilt causes the seasons.

sunlight strikes parts of Earth differently

Diagram showing Mars's orbit around the Sun with four positions illustrating its axial tilt of 24.9 degrees and the resulting Martian seasons: northern winter and summer, northern spring and fall, and their southern hemisphere counterparts. The orbit highlights points nearest and farthest from the Sun, with arrows indicating the direction of revolution.

A large tree with leaves turning orange in fall.

Understand how the tilted rotation of Earth's axis gives more prominent full moon in winter than in summer

Close-up of pink cherry blossoms blooming on a tree branch against a blue sky with clouds, illustrating early spring caused by climate change.

How Earth's orbit and tilt create seasons

Three animated trees without leaves, covered in snow against a blue sky.

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Topics

Monsoon dry season peret shomu wet season akhet Why is summer warmer than winter?Autumn Spring Why do we have seasons?month Global warming Is Climate Change Real?What’s the Difference Between Global Warming and Climate Change?Greenhouse effect Dansgaard-Oeschger event A Recent History of Climate Change Why Does the New Year Start on January 1?Snowball Earth hypothesis Methane burp hypothesis

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Key People

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al-Battānī

Arab astronomer and mathematician

Iceland, Glacier lagoon (Jokulsarlon)

Winter Weather Words Quiz