From world-renowned astrophysicist Sir Martin Rees, a timely, brisk, and alarming look at the way today's technology could spell the end of tomorrow.

Bolstered by unassailable science and delivered in eloquent style, Our Final Hour's provocative argument that humanity has a mere 50-50 chance of surviving the next century has struck a chord with readers, reviewers, and opinion-makers everywhere. Rees's vision of our immediate future is both a work of stunning scientific originality and a humanistic clarion call on behalf of the future of life.