Growing up in Egypt, I never saw the country as divided as it is today. We now have two main political groupings: the Islamist parties and the civil, or liberal, political parties.

Curiosity - the rover and the concept - is what science is all about: the quest to reveal the unknown.

In the Middle East, it is clear that peace will never be reached without solving the Israeli-Palestinian conflict. A two-state solution must be found and enforced.

As recently as the September 11 event, the majority of Muslims were, as the rest of the world was, against its violence. However, if despair and humiliation continue in the population of more than one billion Muslims, the world will face increasing risks of conflicts and wars.

Doctor Who' is part of my science fictional DNA. You could take it out of me, and I'd probably still have ended up being a writer, but almost certainly not the same one.

Evolution seems to close the heart to some of the plainest spiritual truths while it opens the mind to the wildest guesses advanced in the name of science.

As a graduate student I studied mathematics fairly broadly, and I was fortunate enough, besides developing the idea which led to 'Non-Cooperative Games,' also to make a nice discovery relating to manifolds and real algebraic varieties.

In science, it is rare that a transformational change occurs during our lifetimes.