Recent missions have provided important insights into the martian interior, even though all of them aimed to elucidate the planet9s surface. In their Perspective, Fei and Bertka argue that the available evidence points to a liquid Martian core and a solid iron-rich silicate mantle. However, the size of the core is poorly constrained. Because better knowledge of the properties of the martian interior will shed light on the evolution not only of Mars but also of other terrestrial planets, the authors call for a mission that focuses on the martian interior.
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Fei et al. (2005) studied this question.
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