William Thurston died yesterday of cancer, aged 65.
Thurston was one of the greatest contemporary mathematicians; a huge figure in low-dimensional topology. I won’t bother writing out a mathematical biography – Wikipedia and MacTutor have all the relevant information, as usual, and I won’t pretend I know a huge amount about the exact details of Thurston’s achievement. Instead, I’ve tried to gather together a few links from around the web that give an idea of why Prof Thurston was so widely admired.