. . . Would a Kryptonian be useful on a Star Ship???
He could look through the clothes of all those hot Trek babes with his X-ray vision.
(Hey, somebody had to mention it.)
Of course, that particular power wouldn't be of use to anyone else aboard unless he was also telepathic.
What happens when Superman goes near other types of stars like white dwarfs?
Superman LOVES white dwarfs! Especially when they're all furry.