NASA's Perseverance rover finds clues to ancient Mars chemistry and possible life

NASA's Perseverance rover has found evidence of ancient chemical reactions on Mars potentially supporting life. After three years in Jezero Crater, it confirmed clays and carbonates while discovering new minerals. The rover found small nodules of iron phosphate and sulfide in clay-rich mudstone, with phosphates being notable due to their biological importance on Earth. These minerals are more prevalent near organic compound concentrations, suggesting possible interactions that created energy-rich environments on early Mars. Future Earth-based analysis of returned samples could reveal if these formations resulted from biological processes.