|Location:||Omicron Theta system|
Omicron Theta was an uninhabited planet in the Omicron Theta planetary system. The planet had two moons. Prior to 2328, the Omicron Theta colony was established on this planet. This Earth colony, and the planet, were devastated by the Crystalline Entity in 2338.
This was the planet on which Dr. Noonian Soong and his wife Juliana perfected the positronic brain and successfully created a series of Soong-type androids including Data and Lore. (TNG: "Datalore", "Silicon Avatar", "Inheritance")
When the Crystalline Entity attacked Omicron Theta, a distress call was sent from the planet before all life on it was eradicated; the USS Tripoli was the only starship to respond but arrived too late, discovering a lifeless world. However, the Tripoli crew discovered the deactivated Soong-type android, Data, and reactivated him.
Along with finding Data, the Tripoli crew found the planet to be devoid of all life and, what they believed, were "dormant" plants. An analysis by an away team from the USS Enterprise-D determined that there was no soil bacteria. They also ascertained that Omicron Thetas plants were dead and not dormant. (TNG: "Datalore")