Download of Celestia 1.6.3 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free software is an intellectual property of Celestia Development Team.
Celestia.exe, celestia-ED.exe, VSWC5B3_7E64D5F4.exe, VSW89AF_E891036C.exe and VSW2FBC_CAD9CDAB.exe are the most frequent filenames for this program's installer.
This free PC software was developed to work on Windows XP, Windows XP Professional, Windows Vista, Windows 7, Windows 8, Windows 10 or Windows 11 and can function on 32-bit systems.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
Celestia is sometimes distributed under different names, such as "Celestia Educational Activities, Volume", "Celestia Patch DE", "Celestia Patch2 DE". The following versions: 1.6, 1.5 and 1.4 are the most frequently downloaded ones by the program users. This free PC program operates ".cel", ".clx" and ".celx" files. Celestia lies within Education Tools, more precisely Science Tools.
From the developer:
Celestia is a free space simulation that lets you explore our universe in three dimensions.
You may want to check out more software, such as Mystic Gateways The Celestial Quest, AION or In Nomine, which might be related to Celestia.
Science