Concentric Craters, Cylindrical UFO?

There are lots of craters on the Moon, and probably most have other
craters which some way or other disrupted them. Most of the older craters
were entirely obliterated by newer craters, and most of those were somewhat
obliterated by still newer craters, and so on. So that fact that a smaller
crater should be near (but not exactly in) the center of another larger one
is hardly surprising. Probably 80,000 craters are still identifiable on the
Moon. What fraction is it that have other craters in their centers?
But if you want to discuss cratering events that could have disrupted the
Moon, consider one that did that to the Earth (more properly, to the
proto-earth). The best explanation for the origin of the Moon is that it
was created by collision of a "Mars" sized object which impacted the
proto-earth. See
http://www.space.com/scienceastronomy/solarsystem/moon_making_010815-1.html,
or many other more academically advanced sites. And please don't try to
argue with me about this. It isn't my idea, like the idea that the Earth is
a sphere, it is widely supported by lots of evidence and "logical arguments"
which ignore the data will only identify those who make those arguments as
misguided. Examples of the data which support this idea are the lower
density of the Moon (compared to Earth) and identical isotopic abundances of
the elements from Apollo samples of the Moon and Earth, which are very
different from Mars, etc. Even if you convinced me this idea was wrong,
most "enlightened" planetary scientists of the world would still believe it
was true.
Sincerely, Jay Huebner