The first full-disk thermal infrared image of the Earth from the GOES 14 geostationary satellite, taken on August 17, shows Hurricane Bill forming in the Atlantic. In this image, the hotter a surface, the darker it appears; from the NASA Earth Observatory writeup:

In the heat of the midday sun, the exposed rock in sparsely vegetated mountain ranges and high-altitude deserts in western North and South America are dark. In North America, the temperatures cool (fade to lighter gray) along a gradient from west to east, as the semi-deserts of the West and Southwest transition to the grasslands and croplands of the Great Plains, which transition to forests in the East.

It’s even more stunning at full resolution.