Rules for Skills
Defaults: IQ-7, Thaumatology -4 and Theology -4.
Cosmology is the study of other planes and dimensions and the various ways those other planes interact with the Material Plane (see Cosmology for more information). It includes a working knowledge of the various Places of Power, how they work and how they might be located. For Sorcerors, Cosmology is a Limiting Skill and Sorceror's skills with spells cannot exceed their base skill in Cosmology.
Someone skilled in Cosmology could, for example, locate a naturally-occurring gate to another realm or use a map to determine the most likely location for a ley line. For Socerors, it can also be used to actually create Gates, given the appropriate spell knowledge.