The most amazing thing to me about the sea is the tide. A harbour like St. Ives is totally transformed in a very short space of time by the arrival or departure of the sea.

Some people can sometimes really invade your space and kind of never leave you alone.

Time and space - time to be alone space to move about - these may well become the great scarcities of tomorrow.

Myspace alone has just over 80 million users and ranks as the sixth most popular English language website and the eighth most popular site in the world.

Having gone through so many of the personal things I've gone through its about creating an (online) space for girls to be heard. I don't profess to have all the answers. But Ask Elizabeth is a space where girls are not alone.

Perhaps the best motivation for going to Mars is political. It is obvious that no single nation currently has either the will or the resources to do it alone but a consortium of nations and space agencies could achieve it within 20 years.

I love physical kinds of comedy and getting down and dirty and doing stunts. When I was growing up I was always getting into fights with guys and usually punching out boys my age because I was a lot bigger and tougher. So I'm naturally accustomed to putting myself into the headspace of a girl who can take care of herself.

This is the first convention of the space age - where a candidate can promise the moon and mean it.