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.
Artistic compilation of the sun, planets, dwarf planets, and the largest moons of our solar system. All planetary radii are to scale.
100-km depth contours outline the basic radial compositional structure of the planetary interiors of Earth, Mars, Venus, and Mercury.
The interiors of rocky planets and the Moon represented by 100-km depth contours outlining the basic compositional structure.
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.
Comparison of suggested mantle convection in the Earth (mobile-lid mode) and Venus (inefficient short slab mode).