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This is what I've been waiting for! Have wondered if people are researching the collision and found any evidence!!

"Only recently, researchers have found evidence that two regions around the core were left over from the planetary collision that formed the Moon."

The new findings about the topic and subject of the research about the core mantle boundary is also interesting, of course. Some of the descending water mixes with the mantle and creates a unique type of rock that is not found on the surface.