autumn, season of the year between summer and winter during which temperatures gradually decrease. It is often called fall in the United States because leaves fall from the trees at that time.

Autumn or Fall is the third season of the year that arrives after summer and continues until winter. The season is marked by shorter days, lower temperatures, and falling leaves. It will begin on September 22 and last until December 21 in the Northern Hemisphere this year. In the Southern...

This page invites you to explore the magic and the mechanics of fall foliage—from the pigments that paint the leaves to the emotions they stir in us. Whether you're here for science, beauty, or both, you're about to discover why fall is nature’s most breathtaking encore.

Fall is all about transition. Leaves changing, days shortening, schedules streamlining: among the many seasonal shifts, your beauty regimen can use a few swaps, too. Perhaps it's time to revisit ...

It's officially fall in the Northern Hemisphere, which means bright, beautiful foliage isn't far behind. Parts of the U.S. will soon start to see — if they haven't already — leaves and shrubs trade ...

It's officially the first month of autumn. As people look forward to the changing leaves, pumpkin spice lattes and an extra hour of sleep, they may be wondering when fall actually begins. As it turns ...

Learn how tree leaves work—from photosynthesis and fall color to needles vs broadleaves, identification tips, composting leaves, natural dyes, tea, animal feed, and medicinal uses.