
Why an Ancient Catastrophic Flood Channel on Mars Holds the Clues to Alien Life
Carved by catastrophic ancient floods over 3.7 billion years ago, the clay-layered gorge of Mawrth Vallis preserves the premier record of a habitable Mars.
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Carved by catastrophic ancient floods over 3.7 billion years ago, the clay-layered gorge of Mawrth Vallis preserves the premier record of a habitable Mars.

Carved by colossal catastrophic floods, this vast Martian channel stretches across thousands of kilometers to empty into the lowlands of Chryse Planitia.