Geologist

A geologist or exogeologist is an individual who conducts research and study in the field of planetary geology.

Sklar, a Nezu exogeologist, who was having difficulties while traveling aboard an orbital tether, stated that due to his profession he preferred "working on the ground." 

List of geologists

 * Alans
 * Carstairs
 * D'Amato
 * Davies
 * Fisher
 * Hildebrant
 * Jaeger, Karl
 * Merriweather, Patrick
 * Prixus
 * Rawlins
 * Dr. Tainer, Pran
 * Sklar
 * T'Pol
 * Trevix
 * Yolen
 * Zepht
 * Geologist aboard the USS Enterprise (NCC-1701)