This 2012 satellite photo shows a series of giant windblown ridges, known as yardangs, and a group of towering sand dunes at ...

Improved satellite data reveals hidden underwater peaks, reshaping ocean mapping and advancing climate predictions.

according to the Earth Observatory. Radar images of the Aorounga structure taken from space in the late 1990s have also revealed that the eye-shaped rings could be part of a "crater chain." ...