Place stars, planets, and asteroids in a browser sandbox, give them a push, and watch gravity decide what happens next. Stable orbits are lovely; accidentally ruining a solar system is also educational.
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Orbital trails make the motion easy to follow. Instead of only reading about gravitational attraction, you can watch it bend a path across the screen.
Choosing where an object starts and how you launch it makes this an experiment rather than a planet screensaver. Your tiny universe is not obliged to cooperate.
The web sandbox is free to play in your browser. A separate paid download has extra features, but you do not need it to start flinging objects around.
Don't just take our word for it. Experience Gravity Simulator yourself!
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