“The Galileo case is often seen starkly as science’s first decisive blow against not only faith but also the power of the Roman Catholic Church. … Now a particularly enduring Catholic practice is on prominent display in, of all places, Florence’s history of science museum, recently renovated and renamed to honor Galileo: Modern-day supporters of the famous heretic are exhibiting newly recovered bits of his body … as if they were the relics of an actual saint.”