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 ...

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 ...

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, ...

DENVER — The state is in the middle of prime leaf-peeping season and the changing landscape is show-stopping – we'll share the science behind how the leaves turn to those vibrant, fall colors.

Photographs show the differences in fall color at the same site in Japan’s Nagano Prefecture between October 2012 and October 2016. Fall colors at a climate change–monitoring site in Nagano Prefecture ...

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 ...