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How did Earths Moon come to be?


LukeSkywatcher
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I have a New Theory Of Moon Formation: the Moon used to be the same size as Earth is now, but suffered a huge impact that knocked most of it back into space. This material coalesced to form the Earth. Mystery solved!

 

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1 hour ago, Ags said:

I have a New Theory Of Moon Formation: the Moon used to be the same size as Earth is now, but suffered a huge impact that knocked most of it back into space. This material coalesced to form the Earth. Mystery solved!

 

Doesn't explain where all the cheese came from :grin:

Dave

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always a popular topic...I guess we really don't have enough experimental data to really know....take a look at TRAPPIST-1 and note it has 7 Earth sized rocky planets (and perhaps some with moons?) and it makes you wonder whether they are similar in composition and whether the capture theory may apply...

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