Question: Do you think it will ever be possible for humans to live on other planets?

Andrew Cairns answered on 23 Nov 2011:

The technology exists in principle for us to live on planets, especially our nearest neighbour, Mars. However this would be so much more difficult than living on earth- we would need to have a very good reason to want to go there and put so much time and effort into it! Overpopulation, war, disease, asteroids may force us, who knows??