Is this why we haven't found aliens? We're looking for wrong signal
Life requires sufficient phosphorus and nitrogen in a planet's rocky mantle; water alone is insufficient, and planetary oxygen balance determines element availability.
Nathalie Cabrol, astrobiologist: It's an achievement of science to admit we don't know what life is'
Nathalie Cabrol leads astrobiology research at the Carl Sagan Center, studying extreme Earth environments to assess planetary habitability and human potential beyond Earth.
Earth's Continents Stabilized Due to Furnace-Like Heat, Study Reveals
Heat-driven redistribution of radioactive elements cooled and strengthened lower continental crust at >900°C, enabling formation and long-term stability of continental crust.
