Previously answered questions by Valerio Carruba

(in order of times viewed)

1. What is the difference between nutation and precession of the Earth?
2. Is the gravitational force exerted by the Earth on the Moon equal to the centripetal force acting on the Moon?
3. How close do you have to come to the Earth to be influenced by its gravity?
4. How do asteroids, meteors and comets disappear?
5. Can other terrestrial moons be (or have been) stable?
6. What is the three-body problem?

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