A doctor of science, an astrophysicist, a professor in college paleontology enthusiast and an experienced interviewer to tell us the story of this world that is primarily that of humans. For those who are asking questions not necessarily vital, but this philosopher's brain question one of the major representatives of this ancient practice, the famous Leibniz: "Why is there something rather than nothing." In the most logical sequence, questions burst out and each stakeholder tries to affix answers there, often this tenfold humility because alot of uncertainties still exist now ... and maybe even permanently! There was before the Big Bang, that is if the place can be a beginning. the organization of the whole after the chaos perpetrated by the explosion of light that is to the universe what the motherboard to an earthly computer. The formation of stars, planets. The appearance of life, the development of intelligence. Our ancestors, the evolution of the species. The construction of civilizations, instead of faith in all this. The future of the human species. The scheduled end of the sun when it has consumed all its hydrogen. The disintegration of nearby planets whose land the star that will be turned into red giant before finishing black dwarf, a stellar corpse. Assuming that to survive, the human will by then conquered other galaxies. It is very complete, very well explained, popularized, to use the official term used and this collective work of the four authors of the book is welcomed with respect. This allows a summary measure of humility insignificance of our existence at the immensity of universal matter and look to confirm all condensed humility before this remarkable sentence end Dominique Simonnet prologue: "We are as ridiculous sparks under the universe. May we have the wisdom not to forget. " To advise all the curious and passionate minds.