While NASA is struggling to find the money to get to Mars, there are those who think that space exploration (and Mars) represents our best hope for survival. Asked by New Scientist magazine for ideas to make the world a better place, luminaries from both science and business put space exploration high on the list of vital endeavours. J Richard Gott, professor of astrophysical sciences as Princeton University was vocal in his belief that Mars represents a bolt hole for the human race, commenting that a permanent presence on Mars would "...make us a two-planet species and improve our long-term survival prospects by giving us two chances instead of one." Virgin entrepreneur Richard Branson also spoke up for the merits of space exploration, though of course he would as he would reap some of the rewards via his Virgin brand spacecraft. Find the full range of comments at New Scientist.