I'm substantially concerned about the policy directions of the space agency. We have a situation in the U.S. where the White House and Congress are at odds over what the future direction should be. They're sort of playing a game and NASA is the shuttlecock that they're hitting back and forth.

This is one small step for a man, one giant leap for mankind.

All in all, for someone who was immersed in, fascinated by, and dedicated to flight, I was disappointed by the wrinkle in history that had brought me along one generation late. I had missed all the great times and adventures in flight.

Research is creating new knowledge.

Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind.

I think we're going to the moon because it's in the nature of the human being to face challenges. It's by the nature of his deep inner soul... we're required to do these things just as salmon swim upstream.

Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind.

NASA has been one of the most successful public investments in motivating students to do well and achieve all they can achieve. It's sad that we are turning the programme in a direction where it will reduce the amount of motivation and stimulation it provides to young people.

Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.

In much of society, research means to investigate something you do not know or understand.