English: An artist's rendition of Earth's interior structures (left) and those of the exoplanet Kepler-93b (right), which is 1.5 times larger and 4 times more massive than Earth. According to recent research, rocky worlds have comparable structures: a thin crust sits on top of a mantle that surrounds a core that holds around one-third of the planet's mass.
Harvard–Smithsonian Center for Astrophysics/Melissa Weiss
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Captions
Artist's impression comparing the size and interior of planets Earth (left) and Kepler-93b (right)
Uploaded a work by Harvard–Smithsonian Center for Astrophysics/Melissa Weiss from https://pweb.cfa.harvard.edu/news/4282/imagelist; see also https://pweb.cfa.harvard.edu/news/earth-planets-have-earth-interiors with UploadWizard