<ul><li>Researchers suggest that Mars' characteristic red color is due to a chemical called ferrihydrite, indicating the planet was once covered in water.</li><li>Mars, the fourth planet from the Sun, has a thin atmosphere and features volcanoes, canyons, and evidence of ancient rivers and lakes.</li><li>The red color of Mars has been observed and recorded throughout history, and the belief that it was caused by rust-like materials is challenged by recent research.</li><li>The discovery of ferrihydrite in Martian dust suggests the existence of cooler, wet conditions on Mars in the past, enhancing the possibility of past habitability.</li></ul>

A New Explanation for Why Mars is Red

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