The theme of the origin of water on our planet is one of the most discussed not only among scientists but also among ordinary people. Many believe that the first water appeared on the earth about 4-3.6 billion years ago, at the most active stage of the planet's formation in times of constant attacks from large and small comets and asteroids. Large in size asteroids had within themselves water reserves in the form of vapor, liquid and ice.
Japanese scientists have suggested that at the initial stage of formation of the structure of the whole earth were hydrogen formations that enter into a chemical reaction with the oxygen present in the land of the mantle.
The assertion that our planet is at the stage of its formation had a hydrogen atmosphere was confirmed by the analysis of the orbit of the Earth.