Hai'affa is a colony world, in the Scutum-Centaurus Arm planets established between the three great nation. The planet was to be terraformed while the Tharon were on the otherside of the Milky Way.
The planet was originally a dry and uninhabitable planet, however some lifeforms are capable of thriving within the subterranean environment along with natural resources to sustain it. There are many canyon regions and large mountains, also large sandstorms dominate the surface that make it harsh for few indigenous life to thrive. Upon the arrival of the Tharon, the planet's atmoshpere and enviroment. Altered the native fuana and flora's physiology to survive on a more breathable planet over the years.
Behind the scene
During the development of the Babylon series, Soulslayer317 thought of creating planets than using images of planets fom other scifi series. he pictured Hai'affa as a desert world under the development of terraforming, and settled by human colonists.