Internationally known theoretical physicist and bestselling popular science writer Lawrence Krauss explores cosmology's greatest unanswered questions. Three of the most important words in science are 'I don't know'. Not knowing implies a universe of opportunities - the possibility of discovery and surprise. Our understanding of cosmology has advanced immeasurably over the last five hundred years of modern science, yet many fundamental mysteries of existence persist. How did our Universe begin, if it even had a beginning? How big is it? What's at the bottom of a black hole? How did li The Known Unknowns - Lawrence M. Krauss od authora Lawrence M. Krauss a nakladatelství za skvělé ceny na e-shopu Martinus. cz.