The fall equinox arrives on Tuesday, September 22, 2026 at 8:05 p.m. EDT (5:05 p.m. PDT, 00:05 UTC on September 23). That is the precise moment the Sun crosses the celestial equator heading south, and ...

Autumn is synonymous with many things, like back to school, football season, Halloween and pumpkin spice everything. The days get shorter, the weather cools off, weekends are spent apple picking and ...

At Chichén Itzá, the great Maya city on Mexico’s Yucatán Peninsula, the largest pyramid stages an astronomical spectacle twice a year. Around the spring and autumn equinoxes, the late-afternoon sun ...

We’ve just shifted into autumn with the weather finally cooling, and you may have heard chatter about the approaching equinox. While the September equinox is a hot topic in Australia as it marks the ...

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Active adventure: Mark the solstice in Sweden Midsummer celebrations include traditional dancing and feasting throughout the country. Days are at their longest and the sun barely sets at all making ...

Houston’s temperatures in the upper 90s this week and the intensifying drought that has gripped Texas make it hard to believe that the first day of fall is Saturday, when we mark the autumnal equinox.

Twice a year, the sun doesn’t play favorites. Everyone on Earth is seemingly on equal status – at least when it comes to the amount of light and dark that they get. On Monday, we enter our second and ...

There are many reasons to celebrate the spring equinox. For one, it's the time when days start getting longer than nights. For millennia, people all over the world have marked this mystical occasion, ...