The Rocky Highlands and Stable Basaltic Crust of TOI-700 e
Located approximately 100 light-years from Earth in the constellation Dorado , the exoplanet TOI-700 e represents a pivotal subject in modern observational astronomy. As the fourth discovered planet orbiting the small, cool M-dwarf star TOI-700, this terrestrial body provides a significant case study in the evolution of rocky worlds situated within the outer reaches of their system's thermal zones. Unlike its more massive counterparts in the same architecture, TOI-700 e is an Earth-sized world, boasting a radius approximately 95% that of our own planet. Its composition appears primarily silicate-based, suggesting a density profile consistent with a differentiated structure consisting of a dense iron-nickel core surrounded by a thick, rocky mantle. The geological framework of TOI-700 e is defined by its long-term stability and proximity to its parent star's moderate em...