Tandun III

Tandun III also known as Tandun Three was originally a youthful planet that occupied a young star system. It was said to have been lush, suitable for humans and humanoid breathers, and have a close to standard gravity. By 43 ABY, however, the planet had extensive regions of volcanic and tectonic activity. While the planets atmosphere a was still breathable, there were high concentrations of carbon dioxide, methane, and sulfur. While there were intact forests in the southern hemisphere that were abundant in life, surface temperatures had rendered landmasses in the northern hemisphere unsuitable for all the most extremophilic sentient species. The catastrophic forces at work on the planet ultimately destroyed it in 43 ABY.

HIstory
Tandun III was originally surveyed approximately 12,293 BBY by Dr. Beramsh who had lead an expidition from Ord Mantell. While exploring the planet Dr. Beramsh found ruins of ancient population centers and believed they may have been constructed by the Rakata. For reasons unknown, except for its distance from the Hydian Way, Tandun III was never colonized. There were indications that a second survey was done during the time of Chancellor Finis Valorum's second term.

At some point between 29 BBY and 19 BBY the Republic Group brought the Insignia of Unity to the world for safe keeping, building a secret facility that could only be accessed with the use of the Stellar Envoy.

During the Yuuzhann Vong's invasion of the Galaxy, they began Vongforming the world adding yorik coral, tampasi, and other Vong biots.

In 43 ABY the Solo's came to Tandun III in search for the Insignia of Unity and managed to barely escape the destruction of the planet.

Behind the Scenes
If C-3PO's history of Tandun III in the Millennium Falcon novel is correct, then the first survey of the world took place around 12,293 BBY. In the book he claims that the world was not colonized most like due to its distance from the Hydian Way. However the Hydian Way was not pioneered till 3,000 BBY which leaves the question of why the world was never colonized.

Appearances

 * Millennium Falcon