Cosmos Screensaver Online

✓ Free online cosmos screensaver, always flying deeper

An endless flight through deep space — physically colored stars, drifting nebulae and faraway galaxies. Free, no install, no signup.

Truly Infinite FlightThe camera cruises forward forever along a smoothly drifting course. The starfield wraps around the viewer, so there is no loading, no loop point, and no frame that ever repeats.
Physically Colored StarsSpectral types are sampled at their real abundances — red dwarfs dominate, blue giants are rare — and every color comes from a blackbody temperature curve, with brightness falling off by the inverse square of distance.
Procedural NebulaeWispy gas clouds are generated live in the fragment shader with fractal noise. No textures, no downloads, and every cloud you drift through looks different.
Distant GalaxiesTiny spiral and elliptical galaxies with a bright core, two logarithmic arms and a dust lane sit far in the background as a depth cue, barely moving as you pass.