Ramachandran is a professor in the psychology department at the University of California, San Diego, and the author of Phantoms in the Brain. In this new book, Ramachandran sets his sights on the mystery of human uniqueness.

Singer, a science writer for Sandia National Laboratories in Albuquerque, introduces young readers to what fusion is – and isn't. He explains the ways scientists have approached and developed fusion and discusses its advantages over other forms of energy production.

Gravity dominates the universe: It holds the Earth, the Sun, and the Milky Way together, and it keeps our feet firmly planted on the surface of our planet. When an object goes up, it is pulled back to Earth by gravity. These facts make it easy to conclude that gravity is a strong force, but it is actually a very weak force whose confusing and contradictory nature has stumped many investigators.

Do surgeons talk about their sex lives while cutting a heart open? How do surgeons respond to death? How do they react when asked to save the life of an abuser, criminal, or addict? Since its debut, the ABC TV medical drama Grey's Anatomy has asked such questions.