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19h ago
Mysterious never-before-seen egg-like structures found on Mars
- NASA's Curiosity finds egg-like nodules along boxwork ridges on Mount Sharp, indicating past groundwater activity.
- Ridges extend up to 12 miles (20 km) wide in Gale Crater, with boxwork formations guiding the study of Mars' climate history.
- Color-enhanced panoramas show boxwork ridges and hollows, aiding interpretation of ancient groundwater patterns.
- Rover drills samples and detects clay minerals in ridges and carbonates in hollows, refining formation timelines.
- Higher rock layers hint at drier conditions with episodic wet periods in Mars' climate history.
- Researchers propose groundwater bedrock fractures left minerals that cement ridges and later formed nodules.
- Curiosity's ongoing mission aims to understand how Mars transformed from a watery past to a cold, dry present.
- Nodules located along ridge sides rather than at central fractures challenge simple formation models.
- Mount Sharp's rising layers show climate change evidence as Curiosity advances toward sulfate-rich rock.
- The mission's broader goal is to uncover conditions that could have supported life on early Mars.
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