cosmic sandbox, universe simulation, galaxies, stars, planets, nebulae, black holes, asteroids, comets, space dust, physics laws, gravity interactions, time dilation, space exploration, spaceship, astronaut, alien life forms, interstellar travel, cosmic phenomena, supernova, cosmic background radiation, 3D model, high-resolution textures, realistic materials, ambient starlight, wide-angle lens, panoramic view, interactive environment, educational tool, virtual reality, immersive experience, real-time rendering, scientific accuracy, user-friendly interface, space-time continuum, quantum mechanics, celestial mechanics, astrophysics.