Help Build The Universe

Don't let the planets Come Together or they'll explode.

Learn about orbital mechanics by helping god build planetary systems. Use equations of motion to determine the correct parameters god wants for the universe. Build planetary systems to your own design. Play with physically accurate n-body simulations.

Left click and drag: Create a planet
Right Click: delete planet
Right click and drag: measure distances
Space: start time in the new universe
Enter: reset the universe