Autumn leaves glow in the sunlight at the top of Tinker Mountain in Roanoke, on a 2015 midday. The Roanoke Times | File 2015 The amount of direct sunlight shows on part of a sourwood leaf.

As the autumn leaves turn handsomely, I’ve been wondering, why do trees bother? It’s a question scientists have been asking for the past few years, and for the first time, they’ve carried ...

Frederic Edwin Church, “Autumn Woods,” ca. 1870, Cooper Hewitt, Smithsonian Design Museum, gift of Louis P. Church Autumnal leaves in vibrant hues are a beautiful part of the season, but those leaves ...

Red autumn leaves result from a different process: As the chlorophyll diminishes, a red pigment, anthocyanin, which was not previously present, is produced in the leaf.

When the last shimmering autumn leaves drift to the ground, it doesn’t just mark a seasonal change. It’s also a turning point in the global carbon cycle, as forests and other plants start to ...

Beware of Autumn Leaves, Your Car's Silent and Potentially Costly Enemy. Published Oct 12, 2021 at 7:00 AM EDT Updated Oct 18, 2021 at 10:09 AM EDT.