#1 NEW YORK TIMES BESTSELLER • 
NAMED ONE OF THE BEST BOOKS OF THE YEAR BY Forbes • The Guardian • Wired 

The world-famous cosmologist and author of A Brief History of Time leaves us with his final thoughts on the biggest questions facing humankind.
Stephen Hawking was the most renowned scientist since Einstein. He educated millions of readers about the origins of the universe and the nature of black holes, and inspired millions more by defying a terrifying early prognosis of ALS, which originally gave him only two years to live. 

Hawking not only unraveled some of the universe’s greatest mysteries but also believed science plays a critical role in fixing problems here on Earth. Now, as we face immense challenges on our planet—including climate change, the threat of nuclear war, and the development of artificial intelligence—he turns his attention to the most urgent issues facing us.  Will humanity survive? Should we colonize space?