Did you know that the Arctic is warming faster than the rest of the planet?
Why is that autumn moon so bright? The Earth isn't receiving anymore light than usual, the timing is just different!
What makes some fall leaf displays so gorgeous? Learn what changes leaf colors.
Do red, fall leaves act as a sunscreen? Find out on this Moment of Science.
Millions of monarch butterflies fly southwest from eastern Canada and the United States down to Mexico each autumn; then millions more fly back to the northeast in the spring.The one-way trip is as long as 2500 miles for some of these creatures.