<ul><li>The December solstice (winter for the Northern Hemisphere, summer for the Southern Hemisphere) will take place at 9:21 UTC on December 21, 2024.</li><li>The March equinox (start of spring for the Northern Hemisphere, autumn for the Southern Hemisphere) takes place at 9:01 UTC, March 20, 2025.</li><li>Earth's seasons result from our planet's tilt on its axis with respect to our orbit around the sun.</li><li>A video from NASA shows how sunlight falls on Earth's surface during the solstices and equinoxes, as seen by the weather satellite Meteosat-9 in 2010 and 2011.</li></ul>

Solstices and equinoxes in a video from space

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