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[PLAIN]http://www.ibtimes.com/moons-tilted-orbit-explained-relic-impact-created-earth-moon-system-2439888 said:Written[/PLAIN] by lead author Matija Ćuk of the SETI Institute and others, the paper, titled “Tidal evolution of the Moon from a high-obliquity, high-angular-momentum Earth,” says Earth’s spin was much faster and at a much steeper angle when it initially formed about 4.5 billion years ago. Earth originally spun on its side with the moon orbiting around its equator, the paper said.
That raised an interesting question in my mind. Wikipedia was not helpful providing answers.
Surely we must have estimates of Earth rotation rate and tilt both pre and post impact with Theia. What are those numbers?
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