From equal days to extreme daylight shifts, 2026’s solstices and equinoxes mark Earth’s precise seasonal turning points, revealing how a silent orbital dance shapes weather, calendars, and life ...

September's sweater-weather chill and the changing leaf colors are a sign that the first day of fall is here. Here's what to know about the autumnal equinox, fall foliage forecast map for 2025, and ...

Fall is here, at least on the calendar, even though the weather still feels like summer in a lot of places. The autumn equinox is what scientists point to as the true start of the fall season. This ...