Falling Off the Edge of the World
Novelette 14,997 words Recommended by 6 award/anthology sources
"Sunset is beginning, a sweep of red across the sky chasing the blue over the remains of the ship’s stern, dragging darkness behind it like a thick sheet over the day’s face and declaring it done. Stars, such as they are, will come on soon, one row at a time, perfectly spaced and aligned."
Quasar links out; the story lives on Asimov's, where the author gets the click.