The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too cold.
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Mars was once a blue planet with a vast ocean, ancient rivers reveal
Mars, now a dusty world of rusted rock and thin air, once carried enough water to transform its face into something far more ...
Ancient shoreline features hint that water on Mars once formed a vast ocean.
Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ones for the first time. Researchers mapped 16 massive drainage basins ...
NASA's Curiosity rover has found evidence of water on ancient Mars with "rippled textures" and "landslide debris" in the ...
New research has mapped 16 extensive, interlaced river systems on Mars, dating back approximately 3.7 billion years to the Early Hesperian Period. These large river systems, despite covering only ...
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