Was there a beginning of time?, Could time run backwards? and Is the universe infinite are just some of the questions considered in this book for the non-scientific layman. The author begins by reviewing the great theories of the cosmos from Newton to Einstein and then delves into the secrets which lie at the heart of space and time.

Unravelling the latest amazing breakthroughs in theoretical physics, Stephen Hawking guides the reader through the evolution of Einsteinian physics to a universe of ten dimensions and a so-called theory of everything.

The story of 15 billion years of cosmic evolution, transforming matter and life into consciousness, how science and civilization grew up together and the forces and individuals who helped shape modern science. The book aims to make scientific ideas accessible and exciting.

This book explains our current position and techniques for detecting extraterrestrial intelligence.

This book is the first history of the twentieth century extraterrestrial life debate.

'A magnificent challenge to conventional ideas' Financial Times 'I thoroughly enjoyed this book. It manages to be both challenging and entertaining: it is highly recommended' the Independent '(Greene) send(s) the reader's imagination hurtling through the universe on an astonishing ride.