Michael Sabatino 
How Long Will the Sun Last? [PDF ebook] 

Our sun is our constant companion, giving us a seemingly endless supply of light, heat, and energy. But it will have an end. Like all stars, the sun had a beginning, and it will die, too. This book details how this will happen and the likely effects the sun’s end will have on Earth. Readers learn how gravity and nuclear fusion work together in the birth and death of stars. This captivating glimpse into the far, far future will awe enthusiasts of astronomy.