The Sisters of Saint Nicola of The Almost Perpetual Motion vs the Lurch
Novelette 7,931 words Recommended by 2 award/anthology sources
In this raucous, steampunk tale a sacred order of scientist nuns battle against vicious Invaders from Mars and their murderous machines in an ongoing conflict that has lasted centuries.
Quasar links out; the story lives on Tor.com, where the author gets the click.