This essay concerns the authors’ translation of the debate between the Jesuit astronomer Christoph Scheiner and Galileo Galilei in 1611–1612, published as On Sunspots by the University of Chicago Press in 2010. In offering an account of their experience as translators, and of the intellectual aims and unforeseen complications of this project, they have focused on two particular issues. The first is that of the asymmetrical linguistic environment of this epistolary exchange: Galileo’s Tuscan was accessible and congenial to his patron (...) and primary audience but not to his German rival, who was forced to rely on translations and to respond in the more cumbersome idiom of scholarly Latin. The second concern lay with the often problematic translation of the solar images themselves, central to this debate, from various media to print. Here they encountered both the subterfuges of the protagonists and the fiscal concerns, understandable and ultimately manageable, of their own publisher. (shrink)