I want people to see that the cosmic perspective is simultaneously honest about the universe we live in and uplifting, when we realize how far we have come and how wonderful is this world of ours.

There's no shortage of people that we can put on, because science touches us all.

To believe in a universe as young as 6 or 7,000 years old is to extinguish the light from most of the galaxy.

The chunks of comet Shoemaker-Levy 9 were so large, and were moving so fast, that each hit Jupiter with at least the equivalent energy of the dinosaur-killing collision between Earth and an asteroid 65 million years ago. Whatever damage Jupiter sustained, one thing is for sure: it's got no dinosaurs left.

If I'm looking fit and I'm not, then I'm cheating.

Dreams about the future are always filled with gadgets.

We are not simply in the universe, we are part of it. We are born from it. One might even say we have been empowered by the universe to figure itself out - and we have only just begun.