If you do the math, the kinetic energy of the collision was so large that all of the material was liquified or vaporized during the collision. It splattered int

If you do the math, the kinetic energy of the collision was so large that all of the material was liquified or vaporized during the collision. It splattered into a ring shape and the blobs eventually merged to form the moon, which took a long time to solidify. https://en.wikipedia.org/wiki/Synestia https://en.wikipedia.org/wiki/Synestia