Martian Nickel Clue: Perseverance Uncovers 3-Billion-Year-Old Rocks with Rare Mineral Signatures

NASA’s Perseverance rover found unusually high nickel levels (up to 1.1% by weight) in rocks from Neretva Vallis in Jezero crater, dating about 3 billion years, with nickel‑rich minerals in magnesium‑sulfate veins that resemble Earth’s pyrite. While this hints at a chemical environment that could support microbial processes, it does not prove life on Mars; the nickel’s origin is uncertain and requires further study.