Аннотация:Volatile compounds, including water, can enter the lunar exosphere as a result of endogenous processes such as degassingof the interior and volcanic activity on the surface of the satellite. Exogenous sources are solar wind and collisions withthe surface of meteorites, asteroids and comets. As a result of these processes, compounds such as H2O, CO, CO2, etc. canappear in the lunar exosphere.Our calculations show that most of the water molecules (about 69%) will be destroyed as a result of photolysis on the lunarsurface or in hop. Only 0.5% of water molecules will leave the lunar exosphere as a result of exceeding the escape velocity.Cold traps in the region of the Moon’s South Pole will contain 18.6% of the particles participating in the modeling. Only11.1% of water molecules will fall into cold traps near the moon’s north pole.