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Universe Sandbox 2

Dan Dixon

Universe Sandbox is a physics-based space simulator. It merges gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. Create, destroy, and interact on a scale you've never before imagined.

Simulate Gravity

N-body simulation at almost any speed using Newtonian mechanics. Real science, real physics, no supercomputer required. Ride along with the Juno and New Horizons spacecraft, or view a total solar eclipse.

Collide Planets & Stars

Epic, mind-blowing collisions of massive planetary bodies. Start with a star then add planets. Spruce it up with moons, rings, comets, or even a black hole. Make a star evolve by cranking up its age or mass, then watch a supernova unfold. Procedurally generated planets, stars, & galaxies.

Model Earth's Climate

Watch sea ice grow and recede with the seasons because of the tilt of the Earth: change the tilt and change the seasons. Or move the Earth farther from the Sun and freeze the entire planet.

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