Siouxsie and the Banshees.
Can the supernatural and the science fictional meet?
The apparently supernatural can be scientifically rationalized: The Interloper.
The genuinely supernatural can be written in sf style: Hard Fantasy.
Can Martians meet ghosts?
Yes, in works by Heinlein, Bradbury and Lewis.
On Mars, Ransom met beings that were extraterrestrial and supernatural.
Brian Aldiss' extrasolar Helliconians are observed by orbiting Earthmen and in touch with their own hereafter.
Poul Anderson's heroic fantasies are set in the Eddaic cosmology of the Tree whereas his hard sf is set in the scientific cosmology of clusters of galaxies.
Characters from both kinds of cosmologies can meet in the Old Phoenix between universes but never intrude in each others' universes.
Superheroes are a composite genre: a hero's power source can be cosmic or magical.
Hell and the Kryptonian coexist. (Whether this is coherent is another matter.)