"Rejuvenating the Sun and Avoiding Other Global Catastrophes" is a specialized book that explores the concept of asteroid engineering, which is the physical engineering of a star, particularly our Sun. It addresses the challenges that future civilizations will face in light of the aging of their stars. The book combines elements of science and science fiction, discussing the universal problems that any viable civilization in the galaxy might encounter. As stars age, they expand and transform into luminous red giants, jeopardizing the habitable zones of their planets. Civilizations are faced with the choice of either leaving their home and venturing into the unknown in massive spaceships or attempting to maintain their living conditions on their planet. This book provides a deep insight into the theoretical possibilities that civilizations have to cope with the inevitable changes of their stars and ensure the survival of life.