Everything about the Moon (Android)

The moon should be one of the most familiar astronomical body, but do you really know the answer to the following questions?
. How the Moon was formed?
. Is the Moon escaping the Earth?
. Why we can never see the backside?
...
. Is it true that without the Moon, there would not be life on Earth?
Jump in, learn everything about the Moon, and walk on the surface of the moon with an unprecedented immersion way.