- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Inhabited and presumably Class M world (pronounced "YEW-muth") of Federation colonists, disarmed after being redrawn into the Cardassian side of the Demilitarized Zone. In a report read to the Volan council in late 2370, 35 colonists were hospitalized there after eating from public food replicators -- and Cardassian sabotage was suspected as the Maquis tensions escalated.