Back in 2007, I had the opportunity to meet Professor Stephen Hawking through the X PRIZE Foundation. In my first conversation with him I learned that he was passionate about flying into space someday.

Life on Earth is at an ever-increasing risk of being wiped out by disaster. ... I think the human race doesn't have a future if it doesn't go into space. I therefore want to encourage public interest in space.

A Masai warrior on a cellphone in the middle of Kenya has better mobile comm than President Reagan did 25 years ago.

My childhood dreams were focused on being part of the effort to make humanity a multiplanetary species.

Bad news sells because the amygdala is always looking for something to fear.

My father, who grew up picking olives on the Greek island of Lesbos, was a doctor. So my family expected me to become a physician.

If you believe that the developing world deserves the same standards of living that we do in the developed world, then to achieve that, they need resources. They need the metals and the minerals to build the industries and the buildings and so forth, and the energy.