Nontraditional mechanisms of solid-phase astrochemical reactions

The mechanisms of solid-phase reactions that can be directly related to the formation of organic substances in space and their delivery to the Earth as well as the problems of prebiotic evolution are considered. These mechanisms are molecular tunneling (the hypothesis of the cold prehistory of life), polycondensation of solid monomers in shock waves (the problem of delivery of organic substances to the Earth with meteorites), thermal and thermal-wave explosions and oscillations of the radical concentration and temperature of cold small particles in the irradiation fields, and mechanochemical explosions and autowave propagation of chemical reactions us a result of the positive feedback between destruction of solids and reactions on newly formed surfaces.