The celebrated physicist Stephen Hawking became embroiled in a deepening furore today over his decision to boycott a prestigious conference in Israel in protest over the state's occupation of Palestine.
Hawking, a world-renowned scientist and bestselling author who has had motor neurone disease for 50 years, cancelled his appearance at the high-profile Presidential Conference, which is personally sponsored by Israel's president, Shimon Peres, after a barrage of appeals from Palestinian academics.
The move, denounced by prominent Israelis and welcomed by pro-Palestinian campaigners, entangled Cambridge University – Hawking's academic base since 1975 – which initially claimed the scientist's withdrawal was on medical grounds, before conceding a political motivation.
The university's volte-face came after the Guardian presented it with the text of a letter sent from Hawking to the organisers of the high-profile conference in Jerusalem, clearly stating that he was withdrawing from the conference in order to respect the call for a boycott by Palestinian academics.
The full text of the letter, dated 3 May, said: "I accepted the invitation to the Presidential Conference with the intention that this would not only allow me to express my opinion on the prospects for a peace settlement but also because it would allow me to lecture on the West Bank. However, I have received a number of emails from Palestinian academics. They are unanimous that I should respect the boycott. In view of this, I must withdraw from the conference. Had I attended, I would have stated my opinion that the policy of the present Israeli government is likely to lead to disaster."