The present work is an attempt to introduce teenagers to the mysteries of the universe.Applying a simple approach, in the direction of inducing knowledge using natural instruments, such as the science of time, space, velocity, finite, and infinite.It is a narrative in which one of the characters, after consensual approval, begins a short introductory course on astronomy, presenting the basic elements for the understanding of the natural phenomena involved in this science to curious people interested in the subject.It is a supplementary material to complement information provided by textbooks.