Hacker News (AI keywords)Jun 9, 2026, 11:46 AMqunabu

Show HN: Gravity – Interactive Solar-System Simulator from Newton to Einstein

Original: Show HN: Gravity – interactive solar-system simulator, from Newton to Einstein

An interactive web-based solar system simulator visualizing gravity from Newtonian mechanics to Einstein's general relativity.

Gravity is an interactive, web-based solar system simulator that lets users explore celestial mechanics in their browser. It uniquely bridges classical Newtonian physics and Einstein's general relativity, allowing users to visualize and compare orbital behaviors under different gravitational models. It serves as an engaging educational tool for physics enthusiasts and students alike.

"Gravity," which gained attention on Hacker News, is an open-source and highly interactive solar system simulator. The project is hosted on GitHub Pages and aims to provide users with an intuitive physics lab to explore core concepts in astrophysics.

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