What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different planet.

A permanent base on Mars would have a number of advantages beyond being a bonanza for planetary science and geology. If as some evidence suggests exotic micro-organisms have arisen independently of terrestrial life studying them could revolutionise biology medicine and biotechnology.

We're looking at Earth science observing our planet. Also space science looking at the ozone in the atmosphere around our Earth. Also looking at life science. And on a human level using ourselves as test subjects.

We sat around on a hotel balcony with a bottle of wine and tried to figure out how you would go about blowing up a planet. That's the kind of conversations science fiction writers have when they get together. We don't talk about football or anything like that.

I like science fiction and physics things like that. Planets being sucked into black holes and the various vortexes that create possibility and what happens on the other side of the black hole. To me it's the microcosmic study of the macrocosmic universe in man and that's why I'm attracted to it.

Science fiction to me has not only things that wouldn't happen but other planets.

When I investigate and when I discover that the forces of the heavens and the planets are within ourselves then truly I seem to be living among the gods.

It will free man from the remaining chains the chains of gravity which still tie him to this planet.

'I Am Number Four' is an action-packed adventure entwined with a romantic story. I play the role of John Smith. John wants to be a normal kid but he is from a different planet and he has been given this destiny of becoming a warrior.

You cannot look up at the night sky on the Planet Earth and not wonder what it's like to be up there amongst the stars. And I always look up at the moon and see it as the single most romantic place within the cosmos.

Of course the plea for respect for nonhuman life goes far beyond the scientific delight of familiarity with our planet mates. The nonhuman forms of life with which we 6 000 million talking upright apes share this finite planet are directly or indirectly connected to our well-being.

Perhaps I seek certain utopian things space for human honour and respect landscapes not yet offended planets that do not exist yet dreamed landscapes.

The beliefs I was raised with - to respect animals and to be aware of nature to understand that we share this planet with other creatures - have had a huge impact on me.

I'm open-minded. I don't consider myself gay or hetero I just am. I've had experiences all over the planet but it always comes down to just me but I think at this point if I had an ongoing relationship I believe it would be with a man.

I feel blessed to be here representing our country and carrying out th research of scientists around the world... I hope you could feel the positive energy that beamed to the whole planet as we glided over.

I presume that nobody will deny the positive aspects of the North American cultural world. These are well known to all. But these aspects do not make one forget the disastrous effects of the industrial and commercial process of 'cultural lamination' that the USA is perpetrating on the planet.

When you're a houseguest and you leave it's nice to straighten something up or send your hosts a useful gift. And when you leave the planet it's nice to have made a positive contribution.

From my music training I knew that some Spanish rhythms apart 5/4 is a time signature used only in the modern era. Holst's Mars from the Planets is 5/4. But if you speak lines of poetry in that pattern you just end up hitting the off-beats. It's only when you add a rest - a sixth beat - that it sounds as it surely should sound.

I'd say the best is when I was in Africa I saw a hippo in a house. Someone had a pet hippo. And they're meant to be one of the most dangerous animals on the planet and they had one that was sort of just wandering in and out of their house just sort of roaming about.

I can promise you that women working together - linked informed and educated - can bring peace and prosperity to this forsaken planet.

Parenting is the most important job on the planet next to keeping Gary Busey off the nation's highways.

Growing hemp as nature designed it is vital to our urgent need to reduce greenhouse gases and ensure the survival of our planet.

I did not want to be a tree a flower or a wave. In a dancer's body we as audience must see ourselves not the imitated behavior of everyday actions not the phenomenon of nature not exotic creatures from another planet but something of the miracle that is a human being.

People from a planet without flowers would think we must be mad with joy the whole time to have such things about us.