Jupiter

The planets so far have been terrestial, made of rock.
Jupiter, Saturn, Uranus, and Neptune are jovian , made mostly of gas.

Jupiter has beautiful bands of clouds.

Here is a closeup of the Great Red Spot:

The larger moons of jupiter are like terrestial planets, each with an interesting structure.

Davison E. Soper, Institute of Theoretical Science, University of Oregon, Eugene OR 97403 USA soper@bovine.uoregon.edu