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1 article Last updated: 31 Jul 2026 1 section

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Layered slopes of Mount Sharp inside Gale Crater as viewed by NASA's Curiosity rover, the region where the polygon field at Valle Grande was documented. Photo: NASA/JPL-Caltech/MSSS / Wikimedia Commons, public domain

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Curiosity Finds Field of Martian Polygons Pointing to Buried Water in Gale Crater

NASA's Curiosity rover imaged a valley-wide field of Martian polygons at Valle Grande, and mission scientists are testing four competing formation mechanisms.

31 Jul 2026 ·10 min read

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Curiosity rover Mars Gale Crater planetary science Mount Sharp Federal Reserve Donald Trump Iran Array Ukraine

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