Cosmic collision

Scientists have put forward a new theory of how the Moon could arise. The debate has been underway for a long time, been various theories that are affected by a flaws or contradictions.
Today, the most probable is the theory of collision, according to which the proto-Earth collided with another celestial body, and thrown out of the collision of matter formed the Moon. However, until now were unknown or the exact size of this celestial body, or its speed in a collision.
Until now it was believed that the Earth collided celestial body about the size of Mars (called Theia), moving in space is relatively slow.
Such conflict has dramatically increased the temperature of both bodies, and as a result most of the matter hit the lens and part of the Earth's mantle material were thrown into orbit. Of these fragments are gathered against Luna.
Blow on a tangent This implies that the chemical composition of the Moon should be a mixture of substances of the Earth and Teyi.
However, on the Moon, unlike the Earth, there is a lack of iron. At the same time the oxygen isotopes in the Earth and the moon are almost identical. Scientists can not come to a consensus than it can be explained.
Moreover, according to published in March in the journal Nature Geoscience study lunar soil samples brought to Earth American mission "Apollo", titanium isotopes Earth and Moon were also virtually identical.
This, say the scientists, evidence supporting the theory that the moon - is part of the Earth. Andreas Reyfer and colleagues at the space center in Bern, creating a computer simulation, have come to the conclusion that with the proto-Earth collided celestial body is much larger than previously thought, and moved the body to a very high speed. Impact was not in the center, and at an angle. According to them, when such a collision Theia would have lost very little weight and would continue its mission in space.
From this attack, which occurred on a tangent, most substances emitted into space, would be of terrestrial origin.
For the final confirmation of this theory a careful analysis of the samples of lunar soil.