Scientists for long debate about how the Moon formed. The most inclined to the version that many billions of years ago there was a collision of proto-Earth with another proto-planet, Theia, resulting in part of the matter of the planet was absorbed by the Ground, in part of matter thrown into space and became the Moon.
Recently, a group of specialists found in the Greenland rocks, inclusions of breeds, belonging from another planet. The researchers suggested that this may indicate the collision of two planets once. It also turned out that Theia was not the only planet absorbed by the Earth.
Scientists assume that matter of other celestial bodies is about half a percent of the Earth’s mass that is equal to thirty sextillion tons.
IReactor previously reported that NASA has shown rare the explosive galaxy ESO 580-49.