1.3) THE CAPTURE HYPOTHESIS:
Perhaps they did not form in the same area then. The Moon formed somewhere else and drifted into the Earth`s orbit
Fig 4: Earth capturing bypassing moon
This does not explain the similarities then! Particularly, the Moon contains exactly the same isotope of oxygen as the Earth`s mantle. The dynamics required for the capture of such a large object to occur have also been deemed unlikely, probably requiring the presence of a third body.
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