Stephen Hawking – Defying illness, age and medical expectations.

Professor Stephen Hawking was 70 years old today.  That is 49 years since he first suffered the symptoms of ALS, a variation of Motor Neurone disease. In this regard he is almost unique, as the normal life expectancy of such a condition is normally 10 years. Add to the fact that he is one of the most brilliant cosmologists and theoretical physicists in the world today, and this is a very remarkable man.