Natural sciences

Stephen Hawking's closest collaborator offers the intellectual superstar's final thoughts on the cosmos-a dramatic revision of the theory he put forward in A Brief History of Time.

'The material contained in this volume was originally presented in the form of talks to students, teachers and parents in India, but its keen penetration and lucid simplicity will be deeply ...

The epic and controversial story of a major breakthrough in cell biology that led to the conquest of rubella and other devastating diseases. Until the late 1960s, tens of thousands of American children suffered crippling birth defects if their mothers had been exposed to rubella, popularly known as German measles, while pregnant; there was no vaccine and little understanding of how the disease dev