Heart of the Sun (Star Trek: The Original Series #83)

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 give way to fear when the habitat's shifting orbit sends it on a collision course with an inhabited planet within the same solar system. Now Kirk and Spock must find a way to save the planet without destroying a treasure trove of alien science, and time is running out.... 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... Two SF superstars join forces to tell the tale of one incredible cosmic encounter! An abandoned space habitat full of technological marvels is on a collision course with an inhabited planet. It's up to Kirk and Spock to find a way to save the planet without destroying a treasure trove of alien science, and time is running out. The crew of the Enterprise investigates an abandoned space habitat full of technological marvels