The Sahara desert, over southeastern Algeria, sure looks unwelcoming. With humans unwilling to spend weeks surveying such a space, satellites do the job for them. Perhaps unsurprisingly, they’re revealing evidence of soil degradation and overwhelming dehydration—a result of the area seeing less than 10 mm of rainfall per year. [ESA]
http://www.esa.int/spaceinimages/Images/2014/11/Sahara_desert_Algeria
