🌌 Aurora Borealis — Magnetic Field Lines (2D)

A 2D Canvas simulation of the aurora borealis: solar-wind electrons spiral along Earth's dipole magnetic field lines toward the poles and collide with atmospheric oxygen and nitrogen to emit the aurora's characteristic green, red and blue-purple light. Adjust solar wind intensity, the altitude/gas layer, and simulation speed to see how the colours and particle density change in real time.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install