The Moon Likely Turned Itself Inside Out 4.2 Billion Years Ago

During its early years of formation, the Moon may have undergone a dramatic process as a dense layer of material sunk deeper into its interior, mixed with the lunar mantle, and made its way back to settle on the surface. A team of researchers from the University of Arizona found new evidence that supports one of the wildest formation theories for the Moon, which suggests that Earth’s natural satellite may have turned itself inside out a few million years after it came to be. In a new study published Monday...