Science does not deny religion, it just offers a simpler alternative.

I’m not religious in the normal sense. 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.

Why do we remember the past, but not the future?

To my mathematical brain, the numbers alone make thinking about aliens perfectly rational.

For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin.

I'm very interested in film making. It's telling a story, fiction or non-fiction. I have been filmed quite a lot. Contrary to popular belief, filming isn't glamorous. It can be wearingly repetitious, as the same shot is taken over and over again.

We have made remarkable progress in the last hundred years, but if we want to continue, our future is in space.