Planetary body sizes
Artistic compilation of the sun, planets, dwarf planets, and the largest moons of our solar system. All planetary radii are to scale.
Planetary spheres art
100-km depth contours outline the basic radial compositional structure of the planetary interiors of Earth, Mars, Venus, and Mercury.
Planetary spheres
The interiors of rocky planets and the Moon represented by 100-km depth contours outlining the basic compositional structure.
Earth interior model
Simplified model of the Earth’s interior and its global dynamics featuring a solid inner and a fluid outer core, a viscous partially molten but not fluid mantle, and characteristic surface topography.
Planetary interior
Comparison of suggested mantle convection in the Earth (mobile-lid mode) and Venus (inefficient short slab mode).