Although they sat on different sides of the Catholic/Protestant religious divide, Galileo Galilei and Johannes Kepler were joined in their scientific rigor, in their support for Copernicus, and in being distrusted by religious authorities. Galileo narrowly avoided being convicted of heresy for daring to claim that the Copernican system was more than simply a hypothesis. Kepler, nominally Lutheran, was ostracized by his church for being unable to accept the literal presence of Christ in the sacrament--but he could not fully assent to the Calvinist doctrine of predestination. This left Kepler between a rock and a hard place, unable to find permanent employ within the Holy Roman Empire, yet unprotected by powerful Lutheran forces--a severe disadvantage as the Thirty Years War ravaged Europe in the seventeenth century.
Nonetheless, Kepler managed to revolutionize astronomy with his tables and calculations, formulating laws that accurately plotted planetary orbits--even if it took Isaac Newton to describe the mechanisms involved. In this fictionalized history, Clark paints a sympathetic picture of this giant of astronomy, deftly showing how he struggled with his tutors and paymasters, yet remained true to his convictions. For Kepler, the universe was wondrous yet understandable, a way for man to know God; this insistence on believing the evidence kept him (and Galileo) two steps ahead of the dogma-bound Jesuits. A tale this full of excitement, danger, and drama can only be based on real life. Stuart Clark has wrought a stunning novel that will leave you impatient for the next two books in the trilogy.
(reproduced from my article in The Scientist magazine, 1 July 2011)