4.45 Billion-Year-Old Meteorite Points to Hot, Habitable Waters on Early Mars

Researchers have discovered potentially the oldest evidence of hot water activity on Mars through the analysis of a 4.45 billion-year-old zircon grain from the Martian meteorite known as Black Beauty. This finding suggests early Mars may have been habitable, supported by geochemical markers of water-rich fluids and elemental evidence of hydrothermal systems. Unveiling Ancient Water [...]