I recommend Pr. Carolin Crawfords Gresham lecture about the Moon.

I learnt:

– the difference between the far side of the Moon, i.e. the side we never see, and the dark side of the Moon, i.e. the part of the side facing us that is not illuminated by the Sun.

– that the angular velocity of the Moon is such that we always see the same part of its surface is that it is a position of equilibrium due to the tidal deformation of the Moon. Hard to explain in words, check Crawfords illustration at around 18’30”.

– that the Moon has the same effect on the Earth, and is thus slowing down its angular velocity. 4 billion years ago, an Earth day lasted for about 6, and eventually, the Earth will be rotating in phase with the Moon. This means that there will be places on Earth were you never see the Moon.

– due to the law of conservation of energy, the speed of the Moon is increasing as the angular velocity of the Earth is slowing down. This means, in turn, that the Moon is moving away from the Earth at a speed of about 3 cm / year. As it moves further away, it will eventually not be covering the whole Sun when there is a solar eclipse.