Planets (Education - Science)

Planets is a 3D gravity simulation program. Create spherical bodies that attract one another. Build your own solar system, galaxy or ringed planet. This makes god games look like micromanagement. Create up to 16384 planets, Making a planet orbit a larger planet, Make a double star, add rings to planets, 3D glasses mode (adjustable for red/blue and red/green) and spaceship mode for planetary fly-bys.