Memory Beta, non-canon Star Trek Wiki
Memory Beta, non-canon Star Trek Wiki

Life energy is a type of biological energy required for life.

In the 21st century on Earth, the Leiber-Kurtzberg Theory proposed the existence of life energy. Because proof could not be found at the time, the theory was discredited. (TOS - New Visions comic: "The Hunger")


In Bajoran theology, a person's life energy is stored in their pagh. (Decipher RPG module: Worlds)

Thousands of years ago, a Giant Brain organism living within the core of an unnamed asteroid began injecting large quantities of life energy into the lifeforms on the surface, which helped sustain them. (TOS comic: "The Brain-Damaged Planet")

In 2266, life energy was drained from the planet Ecnal by a Lerow rocket intent on using it to restore life on their dying Lerow homeworld. The Federation starship USS Enterprise provided its crew with an energy converter so it didn't need to steal the life energy. (TOS comic: "Planet Ecnal's Dilemma")

In the 2260s, the core of the planet Tristas was found to be hollow, containing a vast field of life energy. Proximity to it merged six scientists into a group consciousness. In 2267, Admiral Tailen Kahn briefly connected with the life energy field, leaving him visibly shaken and notably changed. (TOS comic: "The Final Truth")

In 2269, a life energy transfer device built by Ylterans was discovered on Camus II. An exchange of life energy between two people connected to the device resulted in identity transference. (Decipher RPG module: Worlds, TOS episode & Star Trek 5 novelization: Turnabout Intruder)

In the 23rd century of the Kelvin timeline, Captain Balthazar Edison, Jessica Wolff, and Anderson Le from the USS Franklin used energy transference technology on the planet Altamid to prolong their own lives by draining energy from other sentient life, including Keelah, but at a cost. Their physiology altered to such an extent that they no longer appeared Human and even had difficulty speaking English. (TOS movie: Star Trek Beyond)

Species/Entities that drain life energy[]

In a Klingon interpretation of historical events played out in a holosuite, (*) was said to drain life energy rather than subsist on strong emotions such as hate. (ST - Strange New Worlds VII short story: "Guardians")