I believe the simplest explanation is, there is no God. No one created the universe and no one directs our fate. This leads me to a profound realization that there probably is no heaven and no afterli...
Science is not only a disciple of reason but, also, one of romance and passion.
Roger Penrose and I showed that Einstein’s general theory of relativity implied that the universe must have a beginning and, possibly, an end.
Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approa...
I believe the universe is governed by the laws of science. The laws may have been decreed by God, but God does not intervene to break the laws.
The radiation left over from the Big Bang is the same as that in your microwave oven but very much less powerful. It would heat your pizza only to minus 271.3*C - not much good for defrosting the pizz...
The big question in cosmology in the early 1960s was did the universe have a beginning? Many scientists were instinctively opposed to the idea, because they felt that a point of creation would be a pl...
Time travel was once considered scientific heresy, and I used to avoid talking about it for fear of being labelled a 'crank.'
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.
If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we're ever likely to do that is by going into space.
When one's expectations are reduced to zero one really appreciates everything one does have.
I regard the afterlife to be a fairy story for people that are afraid of the dark
Work gives you meaning and purpose and life is empty without it.
I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.
God not only plays dice, but also sometimes throws them where they cannot be seen.
The universe doesn't allow perfection.
It's time to commit to finding the answer, to search for life beyond Earth. Mankind has a deep need to explore, to learn, to know. We also happen to be sociable creatures. It is important for us to kn...
Before I lost my voice, it was slurred, so only those close to me could understand, but with the computer voice, I found I could give popular lectures. I enjoy communicating science. It is important t...
Women. They are a complete mystery.
I entered the health care debate in response to a statement in the United States press in summer 2009 which claimed the National Health Service in Great Britain would have killed me off, were I a Brit...