"Professor Stephen Hawking, Britain's most famous scientist, is “very ill” in hospital, Cambridge University said today.

Professor Hawking, who works at the university, was undergoing tests at Addenbrooke’s Hospital, Cambridge.

A university spokesman said the 67-year-old physicist, who is best known for his book A Brief History of Time, was taken to Addenbrooke’s by ambulance. “Professor Hawking is very ill,” he added."

http://www.timesonline.co.uk/tol/news/uk/science/article6133752.ece