Yethlūl s.yen'o (Yā'mon III)

Yethlūl s.yen'o (Yā'mon III) is the third planet from the sun of the [Yā'mon system](https://robertsspaceindustries.com/galactapedia/article/VarxDJ5yLo-yaamon-system), [Xi'an Empire](https://robertsspaceindustries.com/galactapedia/article/0n96JkwNo9-xian-empire). Along with the nearby planet [Yethlūl y.ath'o (Yā'mon II)](https://robertsspaceindustries.com/galactapedia/article/bo1JQK12rr-yethluul-yatho-yaamon-ii), it is being jointly terraformed by the [Human](https://robertsspaceindustries.com/galactapedia/article/0Nwpnr6wa2-humans) corporation [ArcCorp](https://robertsspaceindustries.com/galactapedia/article/0dQ47zYd6O-arccorp) and the [Xi'an](https://robertsspaceindustries.com/galactapedia/article/ReJwN9KJEj-xian) government. This long-term collaboration is expected to benefit both sides as they share their technologies and methods with one another. In 2948, the planet was flooded with a violet-hued gas as a step in the atmospheric construction process. Part of the Koa e Ko'ia endurance race took place on Yethlūl s.yen'o in 2947.