Curiosity finds evidence of wet and dry seasons on ancient Mars
The Mars Curiosity rover continues to make discoveries that shed light on the early days of the Red Planet, this time having found evidence that the unforgiving dust world once experienced seasonal weather patterns and flooding.
The patterns Curiosity spotted showed junction angles of around 120 degrees, otherwise known as Y junctions, that only occur after repeat cycles of wet and dry. "In experiments, using clay layers, joint angles progressively tend towards 120° after 10 consecutive dryings with more cycles required to reach a homogeneous distribution centered at 120° and mature patterns of hexagonal shapes," scientists studying the snaps noted inThe cracks themselves are mere centimetres deep, which the boffins said suggests short wet-dry cycles"were maintained at least episodically in the long term," which would be yet another favorable...
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