Recently I wrote in my blog MOON FACTS that the moon would have been created by a collision with a proto-planet called Theia. It wouldn't be a scientific theory if it wasn't taken down by other researchers. An insight into this most valid theory.
It's hard to figure out exactly what happened 4.5 billion years ago about 150 million years after our solar system was created. The docile moon was probably born then, she would then be eighty million years younger than her mother planet Earth.
The theory is that Theia, named after the mother of the ancient Greek moon goddess Selene, collided with mother earth, in which the much iron-containing nucleus of the protoplanet is fused with the core of the earth. A protoplanet is a pre-stage of a planet whose core has been melted, which has differentiated the inside. Differentiated here means a process in which, due to density differences, the chemical elements in a planet concentrate in a certain part of the planet. For example, the composition of the earth is also determined by a similar process and has led to the formation of the composition of the very different composition of the earth's core, the mantle and crust.
The two planets are both temporarily melted due to the enormous heat caused by the collision. According to this view, the moon is a boreling from a rapidly rotating disc composed of both material from the cloak of the small planet the size of the planet Mars and a large amount of debris from the mantle rock of the earth, which collapsed together in a few months. This is the Big Whack theory, which means as much as the teachings of the great fool.
The Big Whack theory will be retested in 2018 by Simon Lock and his colleague Sarah Stewart in California with their both synestia theory. Lock and Stewart discovered through detailed model calculations and computer simulations, that in many cosmic collisions there is no simple planet and disk state at all, as with the Theia theory mentioned above. When that disk has a huge revolution speed, like the earth that probably had shortly after its origin. In synestia theory, the vaporized mantle swells enormously after the collision with Theia, after which the incredibly hot vapour cloud comes loose from the fast rotating planet and mixes with a rotating, donut-like form consisting mainly of vaporized material from Theia. The moment it cools, the moon forms out of this mixture. Big Whack theory seems to have been saved for the time being.
