Stephen Hawking celebrates his 75th birthday TODAY
Back in 1963, when Stephen Hawking was 21 years old, doctors gave him two to five years to live after he was diagnosed with amyotrophic lateral sclerosis (ALS).
He is one of the world's most accomplished people. And, yet, there's clearly no slowing down for professor Stephen Hawking who celebrates his 75th birthday today.
The acclaimed physicist has continually defied medical odds after being diagnosed with amyotrophic lateral sclerosis (ALS) 50 years ago. A condition which normally has a life expectancy of five to 10 years.
Social media users have been paying their respects to the Cambridge University professor, with numerous fans and charities posting heartfelt well-wishes.
In particular, The Motor Neurone Disease Association said: "We would today like to wish our Patron, Professor Stephen Hawking, a very happy 75th birthday!"
Likewise, the Cambridge University Press hailed him "one of our greatest authors".
Interestingly, Hawkins shares his birthday with the late David Bowie, Elvis Presley and Shirley Bassey.
Professor Hawking, who is regarded as possibly the most famous scientist since Albert Einstein, was diagnosed with ALS, a form of motor neurone disease, in 1963 when he was 21.
He has defied all medical expectations after he was given just a couple of years to live. People with his type of motor neurone disease are given a life expectancy of 10 years, but he has now had the condition for over 50 years.
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