Theory that Moon was once Part of Earth Deemed Unlikely

Theory that Moon was once Part of Earth Deemed Unlikely

15 October, 2013 – 12:28 johnblack

15 October, 2013 – 12:28 John Black

The origin of the moon has been a subject of research for many years and many theories about its origin abound. Theories vary from extreme non-scientific proposals, such as that the moon is a spaceship, to the most prominent idea that it was formed millions of years ago from debris that came out of proto-Earth as a result of another planet striking Earth. The first evidence towards that theory came from an Apollo mission 40 years ago, which brought back half a tonne of moon rocks. An analysis revealed that there was a large similarity between the chemical compounds found on the Moon and those found on Earth. Lately more findings that support this theory include evidence showing similarities between the water on the Moon and on Earth.   …more

The origin of the moon has been a subject of research for many years and many theories about its origin abound. Theories vary from extreme non-scientific proposals, such as that the moon is a spaceship, to the most prominent idea that it was formed millions of years ago from debris that came out of proto-Earth as a result of another planet striking Earth. The first evidence towards that theory came from an Apollo mission 40 years ago, which brought back half a tonne of moon rocks. An analysis revealed that there was a large similarity between the chemical compounds found on the Moon and those found on Earth. Lately more findings that support this theory include evidence showing similarities between the water on the Moon and on Earth.

However, recently researchers have proposed new scenarios with the help of complex simulations suggesting that things may not be as simple. Last month at a scientific meeting at the Royal Society in London experts discussed the topic anew and argued that the giant impact scenario wouldn’t have created the moon as it is seen today. And if that is not the case then either the collision between the Earth and the planet was more complicated or our understanding of our solar system is completely wrong and we need to reconsider from scratch what we know.

Simulations done last year at Harvard University by Matija Cuk and Sarah Steward proposed that an impact with a planet just 1/200 of the size of Earth, taking into account the fast spinning of proto-Earth, would create a ‘moon’ of a different size to what it is, exclusively with material coming from Earth’s mantle and would demonstrate a different rotation speed to what it currently has. More research since then has supported the view that the characteristics of the Moon do not support the idea that it came from the Earth.

The result is that it still remains unclear how the moon was formed. But there is a far greater implication because it leads to the question of how the planets in our solar system were formed. In the meeting at the Royal Society it was mentioned that Mars, which is 10% of the size of Earth, should not have formed based on the knowledge that we have, raising the possibility that it was formed somewhere else and then moved to its current position.

By John Black

– See more at: http://www.ancient-origins.net/news-science-space/theory-moon-was-once-part-earth-deemed-unlikely-00934#sthash.SmDqLgI4.dpuf

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