Psi 2000 was a planet that disintegrated in 2266.
Before the planet's end, a science team had been stationed there on behalf of the Federation. The gravitational shifts associated with the disintegration of the planet resulted in the creation of large strings of water molecules known as polywater which resulted in the Psi 2000 intoxication.
Shortly thereafter, a landing party from the USS Enterprise beamed down to the planet and discovered the science team dead. During their investigation, Lieutenant junior grade Joe Tormolen unwittingly contracted the Psi 2000 intoxication and brought it back aboard the starship.
Suffering from the effects of the Psi 2000 intoxication, Lieutenant Kevin Riley powered down the ship's warp engines, causing the ship to begin spiraling towards Psi 2000. Chief Engineer Montgomery Scott was able to push the ship out of harm's way by initiating a cold start of the engines. (TOS: "The Naked Time")
Scotty later recounted these events to USS Enterprise-D chief engineer Geordi La Forge in 2369. (TNG: "Relics")
- Psi 2000 was mentioned as a small note on a very large star chart graphic created for TNG: "Conspiracy". It was the image behind the chair in the room where Dexter Remmick was killed. It is unclear whether this name refers to the star the planet orbited as well.
- In the non-canon novelization in Star Trek 1, the planet was named ULAPG42821DB, or La Pig, for short.
- The 2006 "remastered" version of "The Naked Time" featured several updated shots of Psi 2000, most notably, a computer generated view of the science station on the surface of the planet.
.jpg "Enterprise enters orbit around Psi 2000 (remastered).jpg (263 KB)")