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31 Aug 2012

A new reconstruction has given researchers new clues as to how the moon may have formed.

It is believed to have formed from a collision, 4.5 billion years ago, between Earth and an impactor the size of Mars, known as 'Theia'.

However, over the past decades scientists have simulated this process and hit major problems known as the 'lunar paradox' - finding the moon appears to be made up of material that would not be expected if the current collision theory is correct.

read more: The Daily Mail