Pope Benedict was in charge of Roman Catholic doctrine in 1990 when, as Cardinal Ratzinger, he commented on the 17th-Century Galileo trial. In the speech, he quoted Austrian-born philosopher Paul Feyerabend as saying the Church's verdict against Galileo had been "rational and just". Galileo's inquisitors maintained the scriptures indicated the Earth was stationary. Galileo, a devout Catholic, was forced to renounce his findings publicly.
Fifteen years ago Pope John Paul II officially conceded that in fact the Earth was not stationary.