Are there thunderstorms on Mars? A planetary scientist explains the red planet’s dry, dusty storms

A rover recently captured sounds of lightning crackling on Mars, over a decade after scientists uncovered the first evidence ...
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Was the Red Planet once blue? New evidence points to an ancient ocean on Mars

Mars may have once possessed an ocean at least as large as Earth's Arctic Ocean, a new study suggests. Previous research ...
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Deltas and Canyons on Mars Hint at Ocean That Covered Half the Planet

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...