Browser-based interactive 3D Three-Body problem simulator
Features include: - Several preset periodic orbits: the classic Figure-8, plus newly discovered 3D solutions from Li and Liao's recent database of 10,000+ orbits (https://arxiv.org/html/2508.08568v1) - Full 3D camera controls (rotate/pan/zoom) with body-following mode - Force and velocity vector visualization - Timeline scrubbing to explore the full orbital period The 3D presets are particularly interesting. Try "O₂(1.2)" or "Piano O₆(0.6)" from the Load Presets menu to see configurations where bodies weave in and out of the orbital plane. Most browser…
Browser-based interactive 3D Three-Body problem simulator launched on November 18, 2025 with 249 votes, #100 of 9,796 launches that month and more than 95% of that year's launches.
In plain words
This browser-based simulator visualizes the three-body problem in interactive 3D, allowing users to explore periodic orbital solutions including the classic Figure-8 and newly discovered configurations from Li and Liao's database of over 10,000 orbits. Built with Three.js, it offers full 3D camera controls, body-following mode, force and velocity vector visualization, and timeline scrubbing to examine complete orbital periods. The tool is designed for anyone interested in celestial mechanics, physics education, or mathematical visualization.
written from the facts on this page · September 2026
From the sources
Free online gravity simulator. Set masses and velocities, then watch real-time 3D gravitational orbits, the three-body problem, and chaotic N-body dynamics unfold.
Note: Orbits may become unstable after many cycles due to numerical integration limitations. Based on Li and Liao (2025), which discovered 10,059 new 3D periodic orbits. Paper | Data ⚠️ Quasi-stable: These configurations are approximate solutions and will gradually drift apart after a few orbits due to complex N-body interactions. They demonstrate interesting symmetric patterns but are not true periodic orbits. A gravity simulator is a program that models how objects with mass attract each other and move under that attraction. This one runs entirely in your browser: you add stars, planets, or abstract point masses, give each a mass and a starting velocity, and the simulator computes every…from trisolarchaos.com
In the maker’s words, at launch
Features include: - Several preset periodic orbits: the classic Figure-8, plus newly discovered 3D solutions from Li and Liao's recent database of 10,000+ orbits (https://arxiv.org/html/2508.08568v1) - Full 3D camera controls (rotate/pan/zoom) with body-following mode - Force and…
Does a similar job
all alternatives →- IBI built an interactive 3D three-body problem simulator in the browserMar 2026 · structuredlabs.github.io · ▲60
Atlas of Space2025 · atlasof.space · ▲770Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…
I was curious about spherical helix, ended up making this visualization2025 · visualrambling.space · ▲865I was wondering how I can arrange objects along a spherical helix path, and read some articles on it. I ended up learning about parametric equations again, and make this visualization to document what I learned: https://visualrambling.space/moving-objects-in-3d/ feel free to visit and let me know what you think!
- IMI made a site where you can travel in space in your browser2022 · spaceinbrowser.com · ▲179
I made this site using R3F (https://github.com/pmndrs/react-three-fiber), a React renderer for 3JS (https://threejs.org/). The celestial bodies are Three.JS meshes. I used loaders (namely 'useLoader' from R3F and 'GLTFLoader' from 3JS) to import 3D models, such as International Space Station. More on loading models in R3F: https://docs.pmnd.rs/react-three-fiber/tutorials/loading-mod... I've future plans for this side project. It would be great to hear from the HN community before diving into them. Enjoy! P.S: Getting an empty…
- OSOpen source balloon simulation with Three.js2019 · alexanderperrin.com.au · ▲307
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