A model for the origin of planetary water. Solar reduction of silicon dioxide.

This paper presents a refined model of Earth's hydrosphere formation during the Hadean Eon. Unlike traditional hypotheses regarding external sources (comets), the research focuses on the "solar reduction" mechanism of nanostructured silicon dioxide. Key points:- Justification for the existence of a silicate nanostructured aerosol cloud in near-Earth space with high catalytic capacity.- Presentation of the direct chemical reaction of SiO₂ reduction by solar wind protons: SiO₂ + 4H⁺ + 4e⁻ → Si + 2H₂O.- Evidence of the isotopic mismatch between cometary water and Earth's oceans as a reason for revising classical models.