His mind has grappled with space and time, and explored the strange beauty of black holes aglow, but in recent days a more earthly problem has occupied the world's most famous scientist.
Stephen Hawking, the former Lucasian professor of mathematics at Cambridge University, must ponder how to spend $3m (£1.8m) that has landed in his bank account after winning the most lucrative science prize ever established.
Source: The Guardian. Read full article. (link)