Planet Orbits ScreenSaver 

Screensaver that shows a 3D random arbitrary solar system that shows planets with random orbits and textures from real solar system planets and imaginary planets around the sun
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MaterialWorlds Simulations 

Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides, comets and satellites), play snooker and experiment with Laws of Motion, bridge,crash,ideal gas,pendulum clock and siege engine simulations.
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Newton's Aquarium 

Newton's Aquarium is an interactive physics package that helps students visualize and understand Newton's Law of Universal Gravitation. While creating and exploring their own solar systems, students encounter the core concepts in classical physics.
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1st Light 3D Solar System Simulator 

1st Light is a fully interactive 3D solar system creation tool and screensaver. The free version allows users to view and load any solar system. The paid version allows users to create their own solar system with any texture and # of planets.
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