Image: NASA
This image, captured by NASA’s Aqua satellite on Oct. 11, shows the changing fall foliage in the upper Great Lake region of United States and Canada. Sunlight and temperature cause the shift from green to shades of brown and orange, according to NASA. Northern temperatures drop sooner and sunlight fade faster, so color will appear there as early as September.
The brightest colors happen with dry, sunny days followed by cool, dry nights, the agency said.