This is very cool - NASA's Earth Observatory has a satellite picture of fire season in Central Africa. [ via Adam Curry ] Here's the high-resolution version (250 meters per pixel):
(click image for full-size interactive viewer)
Be sure to hit F11 to maximize your browser's window so you can see as much of the image as possible.
As usual, I upsampled the image and am serving it with Aperio's image server software.