High in the skies over Kazakhstan, space-age technology has revealed an ancient mystery on the ground.

Satellite pictures of a remote and treeless northern steppe reveal colossal earthworks — geometric figures of squares, crosses, lines and rings the size of several football fields, recognizable only from the air and the oldest estimated at 8,000 years old.

http://www.nytimes.com/2015/11/03/science/nasa-adds-to-evidence-of-mysterious-ancient-earthworks.html?smprod=nytcore-ipad&smid=nytcore-ipad-share