Planetary Gemology, also refered as Extraterrestrial Gemology, Astrogemology and Exogemology, is a branch of gemology responsible for the study of gemology on extraterrestrial planets and celestial bodies. Planetary Gemology also works together with Planetary Geography and Planetary Geology.

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy