- "You are entering the Pahvo system. The planet Pahvo is a protected reserve. Access is prohibited."
- ― an automatic warning message broadcasted by the buoy in the planet's orbit
The Pahvo System in Kassae Sector includes the planet Pahvo, a collective, planetary consciousness which, by 2410, hosts a Vulcan research team led by Chief Scientist Somat. Access to the system without permission is prohibited, as Pahvo is a protected reserve.
Discovered by Vulcans in the 21st century, the planet Pahvo is a great, unified consciousness that resonates with the music of a planetary awareness, humming through a crystal transmitter that broadcasts its signal into space - a signal that has never been decoded. Despite centuries of research, the planet's signal remains a mystery, and communication with its indigenous life is tenuous at best.
- “Para Pacem”: Somat asks the player to help him investigate the loss of communication with his team on Pahvo due to an ion storm in the system.
- “Illusion of Communication”: The player returns to the system and uses the ion storm to help return the I.S.S. Discovery to its own time.
- “Pahvo Dissension”: The player returns to Pahvo to stop the Terran survivors from the I.S.S. Charon from turning the planet into a dangerous weapon.
- “Peril Over Pahvo”: The player must defend Pahvo from attacking Klingons.