🌌 A Pocket-Sized Universe in Your Browser
Cosmos Explorer 3D is an interactive, scientifically-inspired tour of our celestial neighborhood. Built entirely as a single-file application, this lightweight simulation allows you to navigate the Solar System and the Milky Way galaxy seamlessly.
Whether you are an astronomy enthusiast or just want to relax while watching the orbits of distant worlds, Cosmos Explorer puts the galaxy at your fingertips.
🚀 Key Features
- Dual View Modes:
- Solar System: Watch the planets orbit the Sun in real-time. Zoom in to see moons like Titan, Europa, and our own Moon dancing around their parents.
- Milky Way: Zoom out to the galactic scale. Explore the Orion Arm, visit the supermassive black hole Sagittarius A*, or marvel at the Pillars of Creation.
- Curated Celestial Objects: The simulation features over 40 distinct objects, ranging from:
- Famous Stars: Betelgeuse, UY Scuti, and Sirius.
- Exotic Phenomena: Neutron stars, Pulsars, and Magnetars.
- Exoplanets: Visit the TRAPPIST-1 system and Kepler-452b.
- Interactive Tour Mode: Sit back and let the Auto-Guide take you on a curated journey through space, complete with camera transitions and educational trivia.
- Narrator Mode: Enable text-to-speech to hear descriptions of the cosmos as you explore.
🎮 Controls
- Left Click + Drag: Rotate Camera
- Right Click + Drag: Pan Camera
- Scroll Wheel: Zoom In / Out
- Click Object: Select and Focus
- UI Buttons: Toggle views, search for stars, and enable the tour.



















































