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Spring Equinox: The Science Behind Equal Day and Night

The science behind the Vernal Equinox

WAVY.com2026.03.18Updated 17d ago
The science behind the Vernal Equinox

COLUMBUS, Ga. (WRBL) — Warmer days, a little more sunshine and budding flowers — spring is on the way! Here is a little bit of science behind what makes the vernal or spring equinox so great. What …

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The vernal equinox marks the astronomical arrival of spring, occurring when day and night are approximately equal length. This celestial event happens twice yearly due to Earth's tilted axis aligning perpendicular to the sun's rays. The phenomenon brings warmer temperatures, increased daylight, and blooming flowers across the Northern Hemisphere.

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