"Blank!" is a science fiction short story by American writer Isaac Asimov. It was commissioned by Larry Shaw, editor of Infinity Science Fiction, as being the least inspirational title on which to base a story. Harlan Ellison and Randall Garrett were also invited to submit stories based on the same title; Garrett wrote one with "Blank?" as the title while Ellison submitted "Blank."[1] All three were published in the magazine in June 1957.[2] Asimov's story was later reprinted in the 1975 collection Buy Jupiter and Other Stories.
The story is about a scientist who is experimenting with time travel. He persuades a reluctant colleague to join him on a journey in the machine he has developed. Despite the inventor's protestations that nothing can go wrong, something does go wrong, and the two travelers find themselves stuck in non-time, between two time-particles. As they fade into unconsciousness, they realize that 'where even eternity was meaningless, there would only be – blank!'