poseidon linux是一份面向学术及科研应用的GNU/Linux发行。它基于Ubuntu，但它通过增加大量应用程序从而获得了很多改进，这些软件覆盖 GIS/maps、数学建模、2D/3D/4D视图、统计、创建简单和复杂图形的工具、编程语言，以及更多。日常应用软件，例如办公套件、 Internet浏览器、即时通讯和聊天客户端也包含在内。

Christian dos Santos Ferreira has announced the release of Poseidon Linux 3.0, an Ubuntu-based distribution enhanced with software for scientific and academic purpose, including applications for numerical modelling, 2D/3D/4D visualisation and statistics: "Our team is proud to announce the new Poseidon Linux 3.0! Poseidon Linux was designed as a friendly and complete desktop, based on open source software and aimed at the scientific community. This operating system is based on Ubuntu and inspired by Quantian Linux. It offers several specific tools in the areas of GIS, 3D Visualization, Mathematics, Statistics and several other fields of research. It also has all the software expected in a modern desktop, such as office suites, web browsers, e-mail readers, etc. The new release supports Brazilian Portuguese, Spanish, English and German languages." Here is the brief release announcement (in Portuguese), and further information is also available on the project's English web site. Download (MD5): Poseidon_3.0.iso (1,693MB).