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

We explore because we are curious, not because we wish to develop grand views of reality or better widgets.

If people don’t have an understanding of what science is and what scientists do, then they can tend to think that global warming, for example, is just a matter of opinion.

Climate change: Don't undermine the science just because you don't like the economics

For the first time, we saw our world, not as a solid, immovable, kind of indestructible place, but as a very small, fragile-looking world just hanging against the blackness of space.

Science is about exploring, and the only way to uncover the secrets of the universe is to go and look.

An explorer of the universe is sexier than a musician.