I can’t believe I’d never run into this before, but I was browsing at a bookstore the other day when I ran across Planet X which — and I’m not making this up — is a Star Trek: The Next Generation and X-Men Crossover. From the Amazon.Com description,
On the planet Xhaldia, ordinary men and women are mutating into bizarre creatures with extraordinary powers. But is this a momentous evolutionary leap or an unparalleled catastrophe? The very fabric of Xhaldian society is threatened as fear and prejudice divide the transformed from their own kin.
Dispatched to cope with the growing crisis, Captain Picard and the crew of the
Starship Enterpriseâ„¢ receive some unexpected visitors from another reality — in the form of the group of mutant heroes known as the uncanny X-MenÂ®. Storm, leader of the X-Men, offers their help in resolving a situation that is agonizingly similar to the human/mutant conflicts of their own time and space.
Interesting. Would have been better with TOS, though.