space simulation, Universe Sandbox 2, mobile version, interactive astronomy, realistic physics, galaxy formation, planet creation, star collisions, asteroid impacts, gravitational effects, material textures, cosmic events, touch screen controls, user interface design, educational tool, 3D graphics, real-time simulation, ambient space music, soft lighting, detailed textures, mobile gaming, science education, virtual cosmos exploration, solar system builder, black hole dynamics, supernova explosions, nebulae clouds, dark matter simulation, panoramic view, immersive experience.