USS Reliant
In the fictional Star Trek universe, the USS Reliant was a Miranda-class starship, registry number NCC-1864. In 2285, while under the command of Captain Clark Terrell, Reliant was assigned to scan the surface of Ceti Alpha VI as a possible test site for the Genesis Project. While on the surface investigating a possible life sign (which would have eliminated the planet as a test site), Captain Terrell and First Officer Pavel Chekov were captured by the genetically-enhanced 20th-century tyrant Khan Noonien Singh, exiled by then-Captain James Kirk on Ceti Alpha V fifteen years before. It turned out Ceti Alpha VI had exploded shortly after they were exiled, and had shifted the orbit of Ceti Alpha V, rendering it nearly uninhabitable.Under the influence of the native Ceti eels, Captain Terrell and Commander Chekov divulged their reasons for being there, and allowed Khan to hijack the Reliant for use in a vendetta against Kirk, who was aboard the Enterprise on a training voyage. When his first attempt to destroy the Enterprise failed, he stole the Genesis device for his own purposes of galactic domination. When Khan tried to force Captain Terrell to kill Admiral Kirk, the moral pressure was too great on the captain that he turned his phaser on himself.
After a climactic battle in the Mutara Nebula, the Enterprise crippled the Reliant, forcing Khan to initiate the Genesis detonation sequence, which would destroy the nebula and both ships. The Enterprise would not have survived had Spock not sacrificed himself to save the ship, which warped out just in time. The Genesis Wave destroyed the Reliant, and formed a new habitable solar system out of the matter in the nebula. Shortly thereafter, the Enterprise, after having buried Spock on the new planet, went to retrieve the Reliant's crew marooned on Ceti Alpha V.