9780375713453 | Reprint edition (Vintage Books, November 14, 2006), cover price $21.00 | About this edition: A critical overview of some of the great scientific discoveries of the twentieth century examines the impact of each breakthrough, the personalities and human drama involved, and its meaning in terms of the pattern of scientific discovery, drawing on the original papers of Einstein, Bohr, McClintock, Pauling, and other notable scientists.

9780375421686 | Pantheon Books, November 22, 2005, cover price $32.50 | About this edition: Examines the impact of some of the most noteworthy scientific advances of the twentieth century, including the personalities and human drama involved, and draws on the original papers of Einstein, Bohr, Hubble, and other scientists.