Astroids

http://www.learn4good.com/games/action/asteroids_online.htm

space invader

http://www.kidsastronomy.com/fun/space_invaders.htm

cool games

http://funschool.kaboose.com/globe-rider/space/games/game_planet_pursuit.html

photos of Jupiter

Jupiter, visited or not

Yes it has, so has Jupiter's moons

Is your planet the largest?

Jupitert is the largest planet.

Jupiter's special features

Jupiter's symbol is a number 2 sign. Also the degrees there is usually is -160 c.