Star Trek Heart of the Sun

When an abandoned space habitat is found within a distant asteroid belt, the Starship Enterprise is sent to investigate. Captain Kirk and his crew discover an artificial world full of technological marvels and unexpected dangers. But wonder and curiosity soon give way to fear when the habitat suddenly sends itself on a collision course with the system's sun, with Spock inside! Now, Kirk and crew must find a way to save a planet and a friend without destroying the treasure trove of alien science, and time is running out.