How big is our solar system? Our galaxy? The universe? Does extra-terrestrial life exist? How unique is Earth? Will we ever be able to travel to other stars? How realistic are the science fiction accounts of space travel? "WELCOME TO THE UNIVERSE" addresses these and many other issues of cosmic proportion. With stunning photographs and mind-boggling facts, "WELCOME TO THE UNIVERSE" provides a fascinating glimpse into the wonders of the universe and the many challenges of space travel. It is the perfect 'pocket sized' compendium for budding astronomers and armchair lovers of science and science fiction.