A LITTLE PERSPECTIVE / 0:37

Where does the solar system actually end?

Past Neptune: the Kuiper Belt. Then the edge of the Sun’s wind. Then a shell of ice nobody has ever seen, which may reach 100,000 times farther than Earth is from the Sun.

Planet textures: Solar System Scope (CC BY 4.0), based on NASA data. 3D scenes are illustrative models, with scale noted on screen.