RC2Y34AL41A2
An artist's impression shows a Mars-sized object colliding with primordial Earth in the "Giant Impact", hypothesized as the event that resulted in the formation of the Moon, with an "after" view of the interior of the Earth showing remnants of the impactor at the bottom of the Earth’s mantle, in this undated handout image. Hernan Canellas/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. NO RESALES. NO ARCHIVES
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