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Curiosity Rover Discovers Extensive Polygonal Terrain in Martian Valle Grande
Key points
- Curiosity rover found extensive polygonal fractures in Valle Grande.
- The polygons are 1.5 to 3 inches wide and cover a large area.
- This is the largest such formation observed by Curiosity.
- The features may indicate past water presence on Mars.
Discovery of Polygonal Terrain
NASA's Curiosity Mars rover has identified a significant expanse of honeycomb-shaped polygons within a Martian valley named Valle Grande. While Curiosity has previously photographed similar polygonal fractures, this latest finding represents the largest area of such terrain observed to date.
Scale of the Discovery
The newly discovered polygonal field covers a wide area, with individual polygons measuring approximately 1.5 to 3 inches across. Curiosity captured a 360-degree panorama of this terrain on June 19th and 20th, 2023 (Martian sols 4,930 and 4,931), showing the texture extending in all directions.
Implications for Martian History
Scientists are analyzing the shapes and chemical composition of these features to understand their formation. Similar polygonal patterns observed in the past have been linked to mud cracks, and their presence in Valle Grande could suggest that water once existed in this region, consistent with evidence of ancient lakes and streams in the foothills of Mount Sharp.
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Reporting from
NASA's Curiosity rover has found a large area of honeycomb-shaped polygons in Mars' Valle Grande, a scale not previously observed. This discovery provides new data for scientists to study the formation processes of these features, which could indicate past water activity on Mars.