A stunning composite image, made up of three years' worth of satellite photos, shows the ancient lava of Libya's Haruj ...

This striking astronaut photo shows off an "eye-catching" impact crater in the Sahara Desert ... Related: See all the best images of Earth from space A group of five barchan, or "horned," sand ...

A series of nighttime photos taken by an astronaut aboard the International Space Station showcases the sprawling lights of ...

A giant patch of black, fossilized lava that was spewed across the Sahara desert over millions of years looks like an eerie, gold-speckled shadow in this stunning composite of three years' worth ...