Collection of science essays. It was the first collection of science essays published by Asimov. The book was also published under the title Marvels of Science

• The Atoms That Vanish (first published in Change!, 1957)
  
• The Explosions Within Us (original article)
  
• Hemoglobin and the Universe (first published in Astounding Science Fiction, Feb. 1955)
  
• Victory on Paper (first published in Astounding, Sept. 1955)
  
• The Abnormality of Being Normal (first published in Astounding, May 1956)
  
• Planets Have an Air About Them (first published in Astounding, March 1957)
  
• The Unblind Workings of Chance (first published in Astounding, April 1957)
  
• The Trapping of the Sun (first published in Astounding, May 1957)
  
• The Sea-Urchin and We (first published in Astounding, July 1957)
  
• The Sound of Panting (first published in Astounding, June 1955)
  
• The Marvellous Properties of Thiotimoline:
  
• The Endochronic Properties of Resublimated Thiotimoline (first published in Astounding, March 1948)
  
• The Micropsychiatric Applications of Thiotimoline (first published in Astounding, Dec. 1953)
  
• Pâté de Foie Gras (first published in Astounding, Sept. 1956)