New images from the North Sea show never-before-seen landforms that were carved by a single, colossal ice sheet 1 million years ago and subsequently buried beneath a thick layer of mud. When you ...
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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 ...
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