Ethiopia's Danakil Depression looks like another planet and scientists know exactly why

Few places on the planet look less like Earth than the Danakil Depression, a scorched, sunken stretch of northeastern Ethiopia where the ground bubbles with acid, glows in shades of yellow and green, and sits low enough to trap some of the hottest average temperatures ever recorded anywhere on the surface of the planet. Streaks of sulphur, iron oxide and copper salt paint the landscape in colours that look closer to a painted alien movie set than anything found in nature, while nearby volcanoes spit lava into glowing lakes and hydrothermal springs hiss out gases at temperatures well above the boiling point.

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