- This article is about Rell's lost world. You may be looking for the enduring Federation planet Theta VII.
History and specifics
Theta VII was part of a trinary star system consisting a primary G class yellow star and secondary M class red and G class yellow stars. It was a lush world inhabited by five million people whose civilization developed over a span of one million years. During this era, animal life included pterosaurs.
In 2267, the USS Enterprise arrived to study the breakup of the now abandoned planet, measuring colliding tectonic plates and the collapse of the world's ecosystem. Hikaru Sulu had to adjust the ship's orbital trajectory every five minutes to compensate for gravitational field changes. Sensors discovered Rell on the surface using an empathic form of telepathy to record the final history and essence of Theta VII. James T. Kirk and Rell beamed aboard the Enterprise a few seconds before the planet imploded, and the ship endured gravitic shock waves prior to departing the area at warp five. (TOS comic: "Worldsinger")