- #1

zsero

- 9

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I don't know how to explain better, but I think what we can see in the movies is that the asteroid is rotating around not one, but around two or three axis at a given time.

What is this kind of motion? Is it correct?

According to the Euler's rotation theorem any 3D rotation that has a fixed point also has a fixed axis. So if they are rotating around more then one axis, does it mean that they don't have any fixed point? But then what is the motion what their center of mass is doing?

I would suppose, that the correct movement would be when asteroids are rotating like planets, around one fixed axis. But to me the rotation commonly seen is not like that. What is the correct way?

Sorry, but I am confused, I have to ask this question: is it possible for any solid object to rotate around more then one axis? Or every possible rotation for a solid object in 3D is actually around one axis?