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Autumnal Equinox 2025: Celebrating the First Day of Fall

1 min read
Source: Space
Autumnal Equinox 2025: Celebrating the First Day of Fall
Photo: Space
TL;DR

The 2025 autumnal equinox occurs on September 22, marking the start of astronomical autumn in the northern hemisphere, characterized by longer nights and cooler temperatures, while the southern hemisphere experiences spring; this event is due to Earth's axial tilt and the sun crossing the celestial equator.

Topics:worldscience#2025#astronomy#autumnal-equinox#celestial-equator#night-sky#science
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  1. Happy autumnal equinox 2025! Fall begins in the northern hemisphere today  Space
  2. When does fall start? All about the 2025 autumnal equinox  NBC Connecticut
  3. When is the first day of fall? What to know as the seasons change  Detroit Free Press
  4. Today’s daily horoscopes: Sept. 22, 2025  AL.com
  5. Autumn Equinox: Balancing eggs, fairy lore and how to celebrate the first day of fall  MLive.com

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