There are several ways the Moon could have been formed but all things considered, the most likely ??????? is that the Earth was struck by another Planet-sized object during the early times of this Solar system's formation. It's clear that there have been many collisions between objects and the remaining Planets and Moons. The evidence is there to see. We saw Jupiter being struck, all the Planets have been so struck over time.

At present, the Earth is revolving around the Sun at roughly 65,000 miles an hour and the speed of rotation of the Earth is around 1,000 miles an hour. The diameter of the Earth is now about 8,000 miles.

If the early Earth was only half the present size and "met" another object of similar size at similar speed both objects would be largely  "melted" by the sheer force of impact and it's likely a lot of debris would be ejected. Gravity would ensure a lot of it would fall back to the largest mass.

If a large mass was ejected, it also would attract debris by it's own gravity depending on its density. Some large pieces would be likely to be thrown so far out that the gravity of the large mass couldn't "hold" or attract it and they would be thrown out in to space.

If quite a large mass was ejected by the collision and it hadn't got enough "speed" to leave the gravitational pull of the Earth it would either eventually be pulled back to Earth or if it was at an in-beteen speed between fast enough to get away from the Earth but not having enough speed to make it but juuuuust enough not to be pulled back, it would go in to orbit around the Earth. As our Moon.

Now, objects in space above around 250 miles in diameter form in to a sphere. The Moon is over 2,000 miles in diameter hence it's a sphere.

The molten Earth and the molten Moon both formed spheres. It seems that parts of the Moon have a different composition. Some have the same constituents as the Earth, some is different leading some to say that part's some of the debris from the object that hit the Earth. Some say the Earth Was "knocked" in to our present position between Venus and Mars and that really, we should be "further out"..... We're now "The Third Rock from the Sun".

Now I suppose you'll say God caused those happenings but how does that equate with your "bible teachings" estimate of the age of the Earth since creation? Ah-ha, so it was only Eden that was "created" on Earth in your time-scale?

Remember, the Universe was formed long before this Solar system of which we are part. There are many, many other Solar systems "out there" and there have been many which have been and "gone".

CD the bible teaches that God has always existed he has no begining and has/will have no end, that he made the universe long before he chose to inhabit the earth. He has been around for millions of years. So he was busy creating the universe and all in it before he chose to inhabit the earth.

Much of the Universe is comprised of the re-constituted debris of stars that have been and "gone." We are Stardust.

I wouldn't disagree that there is debris, but how can you know of everything in the universe? it just goes on and on. 

https://www.jw.org/en/publications/magazines/g201403/untold-story-of-creation/#?insight[search_id]=8...

https://www.jw.org/en/publications/magazines/wp20140801/who-made-god/#?insight[search_id]=8fc5bbf6-a...

I know you don't accept there is a God CD, but what do you think JW's are saying God is, do you understand that we beleive him to be "Almighty" all powerful far superior than anything in existanceicapable of anything. You underestimate him completely.