Happy autumnal equinox! Now, you can finally say fall is here — Sunday was still summer. On Monday, the sun entered Libra, ...

The fall equinox marks the first day of autumn. When does fall officially begin in 2025? This visual guide will help get you ...

In the Northern Hemisphere, the equinox symbolizes the onset of shorter days with longer, cooler nights, while in the Southern Hemisphere, spring arrives with longer, warmer days. This year, the ...

Each March and September, the point directly beneath the Sun crosses the equator, marking the equinoxes. While equinox comes ...

According to NASA, the equinox occurs twice a year, once in March and once in September, when the day and night are of equal ...