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Stephen Hawking calls for space exploration 'for humanity's sake'

Prof Stephen Hawking made the remarks at Cedars-Sinai Medical Centre in Los Angeles
Prof Stephen Hawking made the remarks at Cedars-Sinai Medical Centre in Los Angeles

Stephen Hawking, the British physicist who spent his career decoding the universe and even experienced weightlessness, today called for the continuation of space exploration - for humanity's sake.

The 71-year-old said he did not think humans would survive another 1,000 years "without escaping beyond our fragile planet".

Prof Hawking made the remarks at Cedars-Sinai Medical Centre in Los Angeles, where he toured a stem cell laboratory focused on trying to slow the progression of Lou Gehrig's disease.

Prof Hawking was diagnosed with the neurological disorder 50 years ago while a student at Cambridge University. He recalled how he became depressed and initially did not see a point in finishing his doctorate.

"If you understand how the universe operates, you control it in a way," he said.

Renowned for his work on black holes and the origins of the cosmos, Prof Hawking is famous for bringing esoteric physics concepts to the masses through his best-selling books, including A Brief History Of Time, which sold more than 10 million copies worldwide.

Prof Hawking has survived longer than most people with Lou Gehrig's disease, also known as amyotrophic lateral sclerosis. ALS attacks nerve cells in the brain and spinal cord that control the muscles.

People gradually have more and more trouble breathing and moving as muscles weaken and waste away. There is no cure and no way to reverse the disease's progression. Few people with ALS live longer than a decade.

Prof Hawking receives around-the-clock care, can only communicate by twitching his cheek, and relies on a computer mounted to his wheelchair to convey his thoughts in a distinctive robotic monotone.

Despite his diagnosis, Prof Hawking has remained active. In 2007, he floated like an astronaut on an aircraft that creates weightlessness by making parabolic dives.

"However difficult life may seem, there is always something you can do and succeed at," he said.

Dr Robert Baloh, director of Cedars-Sinai's ALS programme, said he had no explanation for Prof Hawking's longevity.

Mr Baloh said he has treated patients who lived for 10 years or more. "But 50 years is unusual, to say the least," he said.

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