Millions of people every year make it a goal every fall to witness the beautiful changing of leaves. Timing is key, as see peak season is when trees are at their maximum brightness. It’s a challenging ...

We are soon approaching the time of year with shorter days, longer nights and cooler temperatures; when these changes occur, the vibrant green leaves on trees begin to slowly change to reds, yellows, ...

TOLEDO, Ohio — The fall season is quickly wrapping up and, as the winter chill inches closer, the life cycle of fall colors will end, leaving trees with only their branches left to stand. Throughout ...

Crawford Notch, looking east, during autumn. Every other Friday, the Outside/In team at NHPR answers listener questions about the natural world. Today's question comes from Jarrett from San Francisco, ...

The physical signs of fall begin when the leaves change color and start to fall from the trees. This transformation is triggered by shorter daylight hours and cooler temperatures. The process of ...

Over the next week or so, a lot of the region will be experiencing peak colors or coming out of peak fall colors. Chlorophyll The process for leaves changing colors is a multistep process. Let’s break ...

Leaves changing colors is one of the most iconic parts of autumn in the United States, and there's still time to catch stunning fall foliage before trees become totally bare leading into winter. But ...

SEATTLE, Wash. — As autumn arrives, the vibrant colors of fall foliage captivate many, but the science behind this natural spectacle is equally fascinating. Scientists have long studied the changes in ...