http://earthobservatory.nasa.gov/IOTD/view.php?id=46394&src=eorss-iotd
This page from NASA’s Image of the Day shows the rapid change in foliage colors in Pennsylvania in October this year. It was something I had noticed on the ground while driving around town. It’s interesting to see it from way up. Taken with the MODIS sensor, the high resolution full-color images are impressive to see.