• The Sleepwalkers is a valuable and provocative book . . . a work with a noble aim

    Sunday Times
  • The greatest part of this massive work is a close and valuable study of Copernicus, Tycho Brahe, Kepler, and Galileo . . . He writes tensely, with passion, as though personally involved, about events that took place more than 300 years ago

    The Times

Strictly Necessary


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