<img src=”https://naked-science.ru/wp-content/uploads/2025/02/224772_web.jpg” alt=”Geochemists suspect Mars has a solid inner core”/>Mars, like Earth, has a liquid core. This has been proven by data from the NASA InSight probe operating on the surface of the Red Planet. Most likely, the Martian core consists of molten iron with an admixture of light elements such as sulfur. According to calculations, the temperature of the deep interior is too high for crystallization to begin. However, scientists have synthesized an unusual iron sulfide, which under certain conditions can transform into a solid state.