An explorer of the universe is sexier than a musician.

(On the energy radiated by the Sun) It's four hundred million million million million watts. That is a million times the power consumption of the United States every year, radiated in one second, and we worked that out by using some water, a thermometer, a tin, and an umbrella. And that's why I love physics.

There is so much left of it to explore.

At every stage of understanding the universe better, the benefits to civilisation have been immeasurable. None of those big leaps were made with us knowing what was going to happen.

When we look out into space, we are looking into our own origins, because we are truly children of the stars.

When you fall into a black hole you will be literally spaghettified.

In a sense I feel very much a part of the cinema now in a way where when I come back to the theater now I feel like a visitor. The cinema is really what I enjoy. I want to do more independent movies.