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Explore 2 published pages tagged with Equinox, grouped automatically from article text, entity focus, and recurring topical signals.
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Astronomy
An equinox occurs when the Sun crosses Earth’s equator, making daylight and nighttime nearly equal in length worldwide. This happens because Earth’s rotational axis is tilte...
Open articleAstronomy
The official first day of spring in 2019 for the Northern Hemisphere was March 20, 2019 . This date is determined by the astronomical calendar and marks the moment of the March...
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