I have seen animations of the universe / galaxies such as this where the galaxies / clusters are like specks in a 3D / volumetric cloud, which you can zoom into and they get bigger and then zooming into the galaxy you get the individual stars, etc.
Part of that is probably application development, but I'm wondering if there are any standard and/or open data sets (perhaps from NASA or something like that) that has the 3D positions of all of the stars and galaxies and stellar structures we've observed in the universe, or what the closest thing is to this.
