About the book: year / From the Sun to the most distant planets of our Solar System, light travels only a few hours. But even to the nearest stars, light from the Sun travels for several decades. Traveling from star to star is as much more difficult than traveling from planet to planet as interplanetary travel is more difficult than traveling on Earth. Only by mastering and populating Our Solar System will humanity decide to take the first step towards the stars. But what will make it take this step??