Scientists have discovered that the most likely source of water on Moon is the constant stream of charged particles from the Sun known as the solar wind.
As per Researchers, ice inside permanently shadowed polar craters on the Moon, which is also known as cold traps, could contain hydrogen atoms ultimately derived from the solar wind.
How it formed water on the Moon?
As suggested by the Theoretical models of lunar water stability, water and other hydroxyl related compound can be formed when hydrogen ions (protons) from the solar wind combine with oxygen on the Moon’s surface.
With this finding it is also clear that water is likely to exist on Mercury and on asteroids such as Vesta or Eros further within our solar system.