It's a fixer-upper of a planet but we could make it work.

I'm personally a moderate and a registered independent, so I'm not strongly Democratic or strongly Republican.

A battery by definition is a collection of cells. So the cell is a little can of chemicals. And the challenge is taking a very high-energy cell, and a large number of them, and combining them safely into a large battery.

The rumours of the demise of the U.S. manufacturing industry are greatly exaggerated.

I would like to fly in space. Absolutely. That would be cool. I used to just do personally risky things, but now I've got kids and responsibilities, so I can't be my own test pilot. That wouldn't be a good idea. But I definitely want to fly as soon as it's a sensible thing to do.

If humanity doesn't land on Mars in my lifetime, I would be very disappointed.

I think it matters whether someone has a good heart.