Home▸Cosmology▸Galaxy Rotation Curve — Dark Matter Evidence (2D)

🌌 Galaxy Rotation Curve — Dark Matter Evidence (2D)

2D Canvas simulation of galaxy rotation curves. Compare the Keplerian decline predicted from visible mass alone against the flat observed curve that is evidence for dark matter, with an adjustable dark-matter halo fraction and live top-down orbit view.

Cosmology2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

Compare the Keplerian rotation curve predicted from visible stellar mass alone with the flat observed curve that reveals a galaxy's dark matter halo. Adjust the dark-matter fraction and disk mass to see the top-down star orbits and the two curves update live.

dark mattergalaxy rotationcosmologyastrophysicsVera RubinNFW halo

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