Most alien worlds we see in fiction have one main theme that makes them stand out. In Star Wars, Kashyyyk is a verdant planet covered by enormous trees, Kamino is an aquatic planet of endless oceans and storms, Coruscant is a planet-spanning city. In any story, we may only see a small representation of an alien world, but that sample is used to communicate the underlying concept.
In Phoenix, the underlying concept of Leo Five is revealed to us in the following paragraph.