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Galileo’s story may be more relevant today than ever before. At present, we face enormous crises--such as the minimization of the dangers of climate change--because the science behind these threats is erroneously questioned or ignored. Galileo encountered this problem 400 years ago. His discoveries, based on careful observations and ingenious experiments, contradicted conventional wisdom and the teachings of the church at the time. Consequently, in a blatant assault on freedom of thought, his books were forbidden by church authorities.