I watched the moon landing as a boy, and I thought that was the most exciting thing ever, going into space, orbiting Earth and exploring other planets. That looked fantastic.

When I was 12, I saw the Apollo moon landings, and I thought that was really fantastic and exciting and thought, 'That's what I want to do.'

I have watched SS2 evolve over the years into an incredible vehicle that is going to open up space to more people than ever before.

I was a frustrated astronaut all my life. I grew up at a time when space seemed to have no boundaries, and lots of us presumed humans would be living on the moon and landing on Mars.

We go up just into space - space is most commonly accepted to be 100 kilometres above the earth's surface, and we go up just beyond that to about 350,000 ft.

I've always hankered after going into space and walking on the moon and Mars. I did want to be an astronaut, and had there been a manned space flight programme in the U.K., I would have been knocking on the door.