CELESTIA - The Great Journey

The free space simulation that lets you explore our universe in three dimensions. Celestia runs on Windows, Linux, and Mac OS X.

 

Download

• Windows
  The Windows package of Celestia is a self-extracting archive; download it to your computer and then run it.
  
  
• Mac OS X
  The Mac OS X package is a disk image. Download it to your computer, double click it, and follow the instructions in the README.
  
  
• Linux (x86) Version 1.4.1
  If you are running Linux, you should check first with your distribution; there is a good chance that the package is available to you in the format best suited to your installation. A pre-compiled 32-bit version is provided in the autopackage format. It should run on any distribution that has OpenGL and GTK+ 2.6.
  
  
• Source Code
  Celestia is an open-source project. As such, its source code is provided and is freely modifiable and redistributable as per the GNU Public License. Installation instructions are provided in the INSTALL file.