Stephen Hawking in Hospital, "Very Ill"
Professor Stephen Hawking, perhaps the world's most famous scientist, has been hospitalized, and is, according to a Cambridge University spokesman, very ill.
Hawking's A Brief History of Time is a worldwide bestseller, explaining the Big Bang Theory, black holes, and supersymmetric string theory.
Professor Hawking, who works at the university, was undergoing tests at Addenbrooke's Hospital, Cambridge.
Professor Hawking suffers from motor neurone disease and is wheelchair bound. He speaks with the help of a voice synthesiser.
Professor Hawking is one of the world's longest-surviving sufferers of motor neurone disease, and perhaps the only one to have scored a guest spot on The Simpsons ("If you're looking for trouble, you've found it!")
Even as he struggled against the disease that began to cripple him as a young man, his mind grappled with some of the greatest unsolved questions about the universe and creation.
He has been compared with Albert Einstein and is considered a worthy occupier of the Cambridge post once held by Sir Isaac Newton.