I wouldnt be here today if it were not for the NHS, I have received a large amount of high-quality treatment without which I would not have survived.

Jesus loves you, but everyone else thinks you're an ass.

Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.

The media need superheroes in science just as in every sphere of life, but there is really a continuous range of abilities with no clear dividing line.

There are no black holes - in the sense of regimes from which light can't escape to infinity. There are however apparent horizons which persist for a period of time.

It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious.

The whole history of science has been the gradual realization that events do not happen in an arbitrary manner, but that they reflect a certain underlying order, which may or may not be divinely inspired.