Pancake Moon

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so i was simulating tidal locking with a moon exploded into 273 parts. It was orbiting around the moon fine, and then it was like it hit a brick wall and the moon was suddenly turned flat as a pancake. It didn't bounce back into a sphere or anything, it just stayed flat. i reloaded the simulation and played it: the moon exploded.

what i found really cool was that when i turned the timestep down really far, i could see that the explosion somehow gave the moons a large amount of rotational momentum and they were all spinning very quickly

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here are more screenshots of the moon exploding.

i've also attached the pancake moon file as creating one by hand would probably be very tedious

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i deleted all the dust from those past images, then reversed the velocities and let the objects collide again. i like the 3 distinct collision regions that seem to appear

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the moons mass for the final attack 

[Unreal2004]

Now THAT is interesting!  I have tried many times to get a body to rotate with a collision but have never been able to.