What does the angular momentum of the Earth-Moon system reveal about the impact?
Answer
It was a grazing impact
The current rotation of the Earth and the orbit of the Moon are characterized by an unusually high angular momentum. Simulations of the collision indicate that a direct, head-on impact would not produce the rotational dynamics observed today. Instead, these dynamics are best explained by a grazing impact, which provided the necessary force to send material into orbit while maintaining the specific spin rate of the Earth.
Related Questions
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