Incorrectly regarded as goofs: In the original-series episode "The Space Seed", Khan was marooned on Ceti Alpha V with a few dozen of his followers, all of whom were about his same age (roughly their mid-thirties). Now in the movie, set fifteen years later, Khan has aged, but he's surrounded by followers who are all appear to be in their twenties; they're too young to have been the disciples with him in the original episode, but too old to have been born on the planet. However, this is possibly a sign of their augmented, genetic aging process.
more