Lanshark - Open Source LAN Filesharing Tool

Lanshark is a free filesharing tool for local area networks. Lanshark allows you to share files with other users in the same network more efficiently. It automatically detects other lanshark users in the same Network and lets you browse trough their shares. Lanshark has a very fast search function that allows you to search through all the shares in the whole network in just a few seconds!

Celestia

Open Source Planetarium Tool

Celestia is an application for real-time 3D visualization of space, with a detailed model of the solar system, over 100,000 stars, more than 10,000 galaxies, and an extension mechanism for adding more objects. Celestia allows users to travel through an extensive universe, modeled after reality, at any speed, in any direction and at any time in history. Celestia displays and interacts with objects ranging in scale from small spacecraft to entire galaxies in three dimensions using OpenGL, from perspectives which would not be possible from a classic planetarium or other ground-based display.

Stellarium

open source planetarium

Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
It is being used in planetarium projectors. Just set your coordinates and go. Stellarium renders 3D photo-realistic skies in real time with OpenGL. It displays stars, constellations, planets, nebulae and others things like ground, landscape, atmosphere, etc.

RSS Reader

Open Source Feed Reader

RssOwl is the most popular open source feed reader that's highly tweakable and easy to use. It supports multiple tabs and uses an embedded browser to show the full content of the news stories you're viewing.
RSS Owl is a cross-platform app that supports seaved searches, labels, and filters. Download RSSOwl for regular updates!

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