How did the universe come into existence? The question of our cosmic origins has puzzled scientists and philosophers for centuries. This book explores the leading theories on the birth of the universe, including the Big Bang theory, cosmic inflation, and the expansion of space-time. It delves into the formation of the first atoms, the emergence of galaxies, and the role of dark matter and dark energy in shaping the cosmos. By examining evidence from deep-space telescopes and particle physics experiments, readers will gain insights into the origins of space and time.