<p><b>''If you feel you are in a black hole, don''t give up. There''s a way out''</b><br><br>What is inside a black hole?<br><br>Is time travel possible?<br><br>Throughout his extraordinary career, Stephen Hawking expanded our understanding of the universe and unravelled some of its greatest mysteries. In <i>What Is Inside a Black Hole?</i> Hawking takes us on a journey to the outer reaches of our imaginations, exploring the science of time travel and black holes.<br><br><b>''The best most mind-bending sort of physics'' <i>The Times</i></b><br><br><br><i>Brief Answers, Big Questions: this stunning paperback series offers electrifying essays from one of the greatest minds of our age, taken from the </i><i>original text of the No. 1 bestselling </i>Brief Answers to the Big Questions.</p>