Celestia
Open source
FreeFree forever
Overview
Celestia is a powerful 3D space simulator that lets you explore planets, moons, stars, galaxies, and spacecraft in real time using scientifically accurate data. It works as an interactive planetarium and educational tool, allowing free navigation across the universe, time control, high-resolution textures, and extensive community add-ons.
Key features
- 3D space simulation
- Real-time astronomy
- Interactive planetarium
- Time control
- Scientific data
- High-resolution textures
- Add-ons and mods
- Cross-platform
- Educational use
- Free exploration
