As of now, the Giant Impact Hypothesis still stands. Research on it is not yet complete, and the model is currently neither proven nor disproven. To date, it is the most plausible theory considered by scientists.
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As of now, the Giant Impact Hypothesis still stands. Research on it is not yet complete, and the model is currently neither proven nor disproven. Nevertheless, scientists consider it to be the most plausible theory formulated so far.
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Independently of the Giant Impact Hypothesis, Peter Noerdlinger from Saint Mary's University in Halifax, Canada proposed an expansion of the Coaccretion model. He suggested that the Moon formed next to the Earth, complete with an iron core. But this core was then ripped out by the Earth's gravity shortly after the formation, leaving an iron-less Moon behind to orbit the Earth.<ref>New Scientist: [http://space.newscientist.com/article/mg19325875.700-did-the-new-moon-lose-its-iron-heart.html "Did the new moon lose its iron heart?"]</ref>
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Independently of the Giant Impact Hypothesis, Peter Noerdlinger from Saint Mary's University in Halifax, Canada, proposed an expansion of the Coaccretion model. He suggested that the Moon formed next to the Earth, complete with an iron core. But this core was then ripped out by the Earth's gravity shortly after the formation, leaving an iron-less Moon behind to orbit the Earth.<ref>New Scientist: [http://space.newscientist.com/article/mg19325875.700-did-the-new-moon-lose-its-iron-heart.html "Did the new moon lose its iron heart?"]</ref>
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Further research will show if either of these hypotheses is correct, or if scientists are going to develop a new theory based on new observations.
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Further research will show if either of these hypotheses is correct, or if scientists will develop a new theory based on new observations.