Is it windy at all in space? Was it a physical object that knocked the planet to its side?
In: Physics
Assuming that the collision happened after Uranus had already collected its gas atmosphere, I would imagine that a collision would blast all the gas into space — but much of it would get collected by gravity afterwards, returning to the planet. Presumably it would freeze into ice particles, and most of these would not have escape velocity so would eventually rain back down.
The force / heat of the impact would probably cause some to be lost permanently, and the rest to be retained. Anyone got any idea of the proportions, here?
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