The scary face in this image is actually inundated patches of shallow Lake Eyre (pronounced "air") in the desert country of northern South Australia.
Ridges of wind-blown sand make up Erg Iguidi, an area of ever-shifting sand dunes extending from Algeria into Mauritania in northwestern Africa.
Small, blocky shapes of towns, fields, and pastures surround the graceful swirls and whorls of the Mississippi River, the largest river system in North America.
Countless lakes, sloughs, and ponds are scattered throughout this scene of the Yukon Delta in southwest Alaska.
Swirls of yellow streak a deep blue sea around a long island In the style of Van Gogh's painting "Starry Night," massive congregations of greenish phytoplankton swirl in the dark water around Gotland, a Swedish island in the Baltic Sea.
An artist's rendition of the next Landsat satellite, the Landsat Data Continuity Mission (LDCM) that will launch in Feb. 2013
