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Why the Red River The Río Tinto in Spain fascinates scientists
Does this river hold the key to life on Mars It s impossible not to be captivated by the Río Tinto. One of the longest rivers in Spain, and distinctive for its bloodred color. The Spanish river looks like liquid rust, and it has a color that matches its name. The 3millionyear old waterway runs through the heart of southwestern Spain s Andalusia region, threading through Salar de Uyunilike salt flats and ancient terraced mine canyons. The redhued, acidic water is produced by the chemical breakdown of iron and other minerals deep underground. It first flowed from the rocks about four million years ago, and continues to cut a channel through terrace formations as it meanders its way to the Atlantic Ocean. Now scientists think canyons like this one could also provide clues about how life might exist below the surface on Mars. , riotinto, oneminutexplore Discover More on:
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