The solar system, scaled, developed for Hololens.
Outline Shader: Shrimpey https://github.com/Shrimpey/UltimateOutline
Solar System Textures: Solar System Scope https://www.solarsystemscope.com/textures/
Moon Textures: NASA Scientific Visualization Studio https://svs.gsfc.nasa.gov/4720
Mercury Normal Map: FarGetaNik from DeviantArt https://www.deviantart.com/fargetanik/art/Mercury-Normal-Map-8k-686775289