It's not going to be just humans colonizing space, it's going to be life moving out from the Earth, moving it into its kingdom. And the kingdom of life, of course, is going to be the universe.
The fact that the climate is getting warmer doesn't scare me at all. There's no reason why one should be scared.
It has become part of the accepted wisdom to say that the twentieth century was the century of physics and the twenty-first century will be the century of biology.
Scepticism is as important for a good journalist as it is for a good scientist.
I am saying that all predictions concerning climate are highly uncertain.
I don't think of myself predicting things. I'm expressing possibilities. Things that could happen. To a large extent it's a question of how badly people want them to.
