Garfinkle, Richard. Celestial Matters
What if: Aristotlian science and Ptolemaic cosmology accurately described the universe. Also, Alexander the Great conquered Persia and India for the Delian League, but his success caused China to unite under the Han.
Summary: Nine hundred years after Alexander, the Delian League and the Middle Kingdom remain locked in perpetual war. An Athenian academic leads an attempt to retrieve a piece of celestial matter from Helios to use in a weapon of mass destruction, but his project is plagued by Middler attacks, internal sabotage and ultimately by his own doubts about the Good of the project.
Published: Tor 1996 (0312859341BUY), 1997 (0312863489BUY); SFBC 1996.
Original in: English.
Translation: Spanish by Rafael Marín Trechera as Materia Celeste, Ediciones B 2003 (846661124X).