Solar system terrestrial planets as a research area focuses on the comparative study of Mercury, Venus, Earth, and Mars to understand the formation, differentiation, and evolution of rocky planets. It integrates planetary geology, geophysics, geochemistry, atmospheric science, and orbital dynamics to investigate crust–mantle–core structures, volcanic and tectonic processes, surface–atmosphere interactions, and volatile and climate histories. The field relies heavily on spacecraft missions, remote sensing, in situ measurements, laboratory analyses of analog materials, and numerical modeling to constrain accretion processes, interior dynamics, habitability conditions, and the broader context of terrestrial exoplanets.
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