This image from Korea's Kompsat-2 satellite on 8 February 2013 shows an area in the southern Darfur region of Sudan, just south of the city of Nyala.
Deep in the Sahara Desert, the Al Jawf oasis in southeastern Libya is pictured in this image from Japan's ALOS satellite.
The foothills of the Andes mountains near the southern coast of Peru are captured by the Kompsat-2 satellite.
A pattern of earthen berms, spread across a northern peninsula of the big island of Hawaii, is providing archeologists with clues to exactly how residents farmed in paradise long before Europeans arrived at the islands.
Maize was domesticated from its wild ancestor more than 8700 years according to biological evidence uncovered by researchers in the Mexico's Central Balsas River Valley. This is the earliest dated evidence -- by 1200 years ...