The three interior layers of the Earth: the crust, the mantle, and the core | Britannica

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A major breakthrough in planetary science confirms Mars has a solid inner core, a feature once thought unique to Earth. By analyzing seismic waves from "marsquakes" recorded by NASA's InSight lander, scientists have settled a long-standing debate about the Red Planet's geology. This discovery of a solid iron and nickel core provides crucial insights into the formation, thermal history, and evolution of Mars, rewriting our understanding of the planet's interior structure. source: https://www.natu

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