"A Volcanic on Titan, Sixth Moon of Saturn." by Ken Fagg
Weak on Square Roots by Russell Burton
"Does your wife call you Pumpkinhead? Well, maybe it's not an insult; it might be a pet name. Ah—but whose pet name?"
One Martian Afternoon by Tom Leahy
"She was sweet, gentle, kind—a sort of Martian Old Mother Hubbard. But when she went to her cupboard ..."