Violent, head-to-head crash between Earth and another planet created the moon
rt.com: Published time: 30 Jan, 2016
New clues suggest the moon resulted from a head-on collision
between Earth and another forming planet, according to scientists. Researchers from a team
lead by the University of California, Los Angeles (UCLA) analyzed lunar
and volcanic rocks before concluding the moon was formed during a
violent head-on collision between an early Earth and another forming
planet called Theia.....
Read more: https://www.rt.com/usa/330681-earth-planet-crash-moon/
Spaceship Moon Theory
.. also known as the Vasin-Shcherbakov Theory, is a hypothesis that claims the Earth's moon may actually be an alien spacecraft. The hypothesis was put forth by two members of the then Soviet Academy of Sciences, Michael Vasin and Alexander Shcherbakov, in a July 1970 article entitled "Is the Moon the Creation of Alien Intelligence? Vasin and Shcherbakov's thesis was that the Moon is a hollowed-out planetoid created by unknown beings with technology far superior to any on Earth....
Read more: https://en.wikipedia.org/wiki/Spaceship_Moon_Theory