LAKE BUENA VISTA, Fla. — Epcot’s iconic white sphere, Spaceship Earth, closed for nearly six months, will reopen to the public Friday with a new story line and digital enhancements. The show’s producer Bob Zalk says the new story is about innovations and how they inspire the next generation. The ride features new show scenes, lighting effects and costumes with a new musical score narrated by Judy Dench. The ride’s vehicles remain the same, but include new touch screens. There will also be an interactive component. Disney officials expect to make minor changes before the ride’s formal reopening in February.