Chances are, when we meet intelligent life forms in outer space they're going to be descended from predators.

I am a figure skater, which helps me appreciate Newton's theory of mechanics.

Aging is basically the build-up of error: error at the genetic level, error at the cellular level. Cells normally repair themselves; that's why you heal when you get a cut. But even the mechanism of repair eventually falls apart.

To become a theoretical physicist ... you need to have a passionate love affair with the universe.

Science is definitely part of America's infrastructure, the engine of prosperity. And yet science is given almost no visibility in the media.

Until computers and robots make quantum advances, they basically remain adding machines: capable only of doing things in which all the variables are controlled and predictable. Robots are bad at pattern recognition and certainly at common sense. That's why computers can beat humans in chess but can't have even a basic conversation with a six-year-old.

This is a huge step toward unraveling Genesis Chapter 1, Verse 1-what happened in the beginning. This is a Genesis machine. It'll help to recreate the most glorious event in the history of the universe.