Show HN: Galaxium, an experimental WebGPU space explorer

I like the motion blur on the stars, but it increases the brightness of each star. It would look more consistent if the brightness of a star was constant regardless of motion. I guess the brightness increase makes things look cooler when you're warping through space but it's distracting when orbiting the camera around objects.

I think clicking to select things could be improved. Clicking on names is reliable but clicking on rendered objects seems unreliable. Sometimes clicking on a planet or star does nothing. Also my mousewheel seems quite slow to zoom, I know this is hard to tune across platforms on the web, I'm on Ubuntu 26 currently.

I can think of about a billion features to add. Real time clouds for Earth, a bunch more satellites and spacecraft, eclipses (Google Maps web 3D view renders these, crazily enough, if you set your system clock to the appropriate time), more terrain and high res imagery, multispectral imagery/rendering, relativistic effects, realistic close-up rendering of planetary rings, solar flares and fancier star rendering, binary stars orbiting each other, procedural generation of plausible stars and solar systems with exoplanets in other galaxies or unobserved parts of our own galaxy. Really depends on where you want to take it!

The earth rotation is probably not correct, I am in UK and sun has not set yet, but in Galaxium it is showing night in UK.