Professor Hawking makes it clear that he has not endorsed this book.

But my conclusion at the end was, if you already know what Professor Hawking is talking about here, it's a pretty good book.

"These papers are important to show how his ideas developed," Professor Hawking said.

I as an amateur researcher fully agree with Professor Hawking.

Earlier this year, Professor Hawking said he was "not afraid of death" in an interview with the Guardian.

"This is a very distinguished medal," Professor Hawking said.

The extent of Professor Hawking's condition now means he can only communicate by twitching his cheek.

Prof Hawking has appeared in cartoon form in many episodes of the long-running show.

Prof Hawking said: "To my mathematical brain, the numbers alone make thinking about aliens perfectly rational.

The world-renowned university has received applications and is currently going through an interview process to enlist Prof Hawking's successor.