SKYOS is a real-time 3D space simulation built around a living sky and real-time orbital experience. Earth rotates and evolves with real date and time. Day and night, seasons, orbital motion, constellations, solar alignment, and celestial events are designed to create a persistent and immersive space-time environment. Observe Earth and the sky in real time, explore the Solar System at macro scale, visualize constellations and zodiac layers, and follow orbital activity around Earth. Real-time satellite positions, weather satellite imagery, and space-related visual data are integrated to create a dynamic and evolving simulation.