How Big Is Our Universe? And Other Cosmic Quandaries The Long Now Foundation - Chabot Space & Science Center President of the Royal Society, England’s Astronomer Royal, Lord Martin Rees brings a lifetime of cosmological inquiry to a crucial question: What if human success on Earth determines life's success in the universe?He thinks that civilization's chances of getting out of this century intact are about 50-50. He is hopeful that extraterrestrial life already exists, but there's no sign of it