Does the Moon formed after the impact of a protoplanet Earth?
Two recent scientific studies place the protoplanet Theia protagonist of the origin of our moon. A group of researchers from Harvard University and the SETI claim to have got evidence to place chemical formation and origin of the moon after the Theia impact on Earth .
Theia’s name comes from Greek mythology, as Theia or Titaness Tea was the mother of the moon goddess Selene. Sometimes the theoretical planet is called Orpheus or Orpheus. This solar system protoplanet applies to the theory that attempts to explain the existence of the Moon in the call big impact hypothesis. It was supposedly a planet the size of Mars around 4500 million years
The first study This supports the theory that the Moon formed from debris formed after the impact of Theia with Earth. Research that is published in Nature and has had his answer hours later in another study published in Science.
According to researchers at Harvard and SETI, the Moon was formed after the tremendous impact between the proto-planet and Earth. The speed at which the Earth had revolved expelled a large amount of material ejected, so as to form the Moon. After impact, the speed of rotation of our planet was stemmed by a given gravitational interaction between the Sun and the Moon. The researchers argue that this is the answer to the similar in chemical composition between Earth and the Moon.
The second study is to explain that, in fact, the moon formed after the impact, but after several analyzes of the possible collision, the moon would have formed waste of our own planet, ie the satellite consists of residues Earth after the collision.
Either way, both theories are supported by large impact hypothesis for the origin of our moon. One hypothesis that dates back to the nineteenth century, when it was first suggested the impact on our planet as the origin of the satellite.Tags: Earth, moon, Theia