Information about the moon

I think the following information is about the moon.

1, the moon, the name of the celestial body, is called the moon seen by the naked eye.

2. The diameter of the moon is about a quarter of that of the earth, and its mass is about one eighty-first of that of the earth.

In March and May, 19, 16, and 2065438, it was confirmed that there were deep materials mainly composed of olivine and low calcium pyroxene in the Antarctic-aitken basin on the back of the moon.