https://scitechdaily.com/a-novel-discovery-nasas-curiosity-rover-finds-a-book-like-rock-on-mars/
On its 3,800th sol, NASA's Curiosity Mars rover photographed a book-like rock, "Terra Firme," a result of water depositing harder minerals and wind erosion shaping it over time. NASA's Curiosity Mars rover took this close-up view of a rock nicknamed "Terra Fi…
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