Every carbon atom in every living thing on the planet was produced in the heart of a dying star.

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.

Skepticism must go hand in hand with rationality. When theories are shown to be false, the correct thing to do is to move on.

There is so much left of it to explore.

Light is the only connection we have with the Universe beyond our solar system, and the only connection our ancestors had with anything beyond Earth. Follow the light and we can journey from the confines of our planet to other worlds that orbit the Sun without ever dreaming of spacecraft. To look up is to look back in time, because the ancient beams of light are messengers from the Universe's distant past.

You dig deeper and it gets more and more complicated, and you get confused, and it's tricky and it's hard, but... It is beautiful.

Science is too important not to be a part of popular culture.