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Hawking: If we survive the next 200 years, we should be OK

  • Story Highlights
  • Professor Stephen Hawking: Long term future of human race must be in space
  • He tells CNN: If we can avoid disaster for the next 200 years we should be safe
  • Hawking is Lucasian Professor of Mathematics at Cambridge University
  • He wrote "A Brief History of Time" 20 years ago
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CAMBRIDGE, England (CNN) -- Professor Stephen Hawking, one of the world's great scientists, is looking to the stars to save the human race -- but pessimism is overriding his natural optimism.

Stephen Hawking, here delivering a lecture in May, spoke recently to CNN about his vision of the future.

Stephen Hawking, here delivering a lecture in May, spoke recently to CNN about his vision of the future.

Hawking, in an exclusive CNN interview, said that if humans can survive the next 200 years and learn to live in space, then our future will be bright.

"I believe that the long-term future of the human race must be in space," said Hawking, who is almost completely paralyzed by the illness ALS.

"It will be difficult enough to avoid disaster on planet Earth in the next 100 years, let alone next thousand, or million. The human race shouldn't have all its eggs in one basket, or on one planet. Let's hope we can avoid dropping the basket until we have spread the load."

Hawking is one of the few scientists known to a wide audience outside academia thanks to his best-selling books, a guest spot on "The Simpsons" and an ability to clearly explain the complexities of theoretical physics.

He has 12 honorary degrees, was awarded the CBE in 1982 and since 1979 has been at Cambridge University's Department of Applied Mathematics and Theoretical Physics, where he is Lucasian Professor of Mathematics -- a post once held by Isaac Newton.

Speaking at Cambridge's Centre for Mathematical Studies, he said: "I see great dangers for the human race. There have been a number of times in the past when its survival has been a question of touch and go. The Cuban missile crisis in 1963 was one of these. Video Watch the interview in full »

"The frequency of such occasions is likely to increase in the future. We shall need great care and judgment to negotiate them all successfully.

"But I'm an optimist. If we can avoid disaster for the next two centuries, our species should be safe, as we spread into space."

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Twenty years ago, Hawking wrote "A Brief History of Time." Now he is looking forward to a space flight of his own next year.

He said: "I don't think the human race has a moral obligation to learn about space, but it would be foolish and short sighted not to do so. It may hold the key to our survival."

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