Exo system
From Trekipedia
The star of the Exo system began to steadily fade c.500,000 BCE. The third planet in the system was Class M, but its surface temperature dropped significantly as the star waned, and the native civilization was driven underground before the population was all killed by their android creations.[1]
Notes and References
- ↑ Roddenberry, Gene (Executive Producer). "Balance of Terror". Star Trek, season 1, episode 14 (Production number 09). Directed by Vincent McEveety. Written by Paul Schneider. Desilu Productions. 15 December 1966.
