A new theory of the universe, twenty years in the making, by Stephen Hawking and his close collaborator Thomas Hertog.

Perhaps the biggest question Stephen Hawking tried to answer in his extraordinary life was how the universe could have created conditions so perfectly hospitable to life.

Pondering this mystery led Hawking to study the big bang origin of the universe, but his early work ran into a crisis when the maths predicted many big bangs producing a multiverse - countless different univ...

'A wonderful book about Stephen Hawking's biggest legacy' Spectator

'Truly mind-stretching... Immensely rewarding' The Times

'This superbly written book offers insight into an extraordinary individual, the creative process, and the scope and limits of our current understanding of the cosmos' Sir Martin Rees

Stephen Hawking's closest collaborator offers the intellectual superstar's final thoughts on the universe.

Perhaps the biggest question Stephen Hawking tried to answer in his extraordinary...