Thanks to being sent away from Planet Vegeta as a baby, Goku was one of the only Saiyans to survive Frieza’s destruction of that world. Then Goku once again defied the odds by getting off Namek just before Frieza’s plan to destroy that world succeeded. Goku also made it off the Earth...
Most planets can exist for a long, long time, but they can't last forever. Hungry stars and violentplanetary neighbors can completely destroy a world, while impacts and excessive volcanism can render a habitable world sterile by stripping the planet of its water. Which planet has been destroyed?