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More interesting to me is this claim:

"These M class asteroids are thought to be the remnants of the iron-rich cores of proto-planets that have since broken up, such as Theia, an ancient planet that long ago smashed into Earth, knocked it off its axis, and threw up debris, some of which became the Moon."

Is it now accepted that a collision with another planet created the Moon? I thought that was just a theory?

#Moon #asteroid #Theia
#astronomy