This is a very beginner-level Astrophysics Book. Written for the general audience. It teaches the things every human should know about the universe. It covers topics such as black holes, relativity, and even quantum physics. Yes, for the general audience! Before going to sleep, I used to explain my little sister about the wonders of the universe in the language she would understand. Not just sister, but my grandparents, friends, and everyone who I wanted to know about the wonders of this universe. If you are a newbie to this subject, then this book is for you. Starting from age 11 and above, everyone can understand the content of this book. This book is all about the knowledge of the universe that every human should know. It's the best gift for anyone whom you would like to share your curiosity about the wonders of this universe. And now you are not alone in wondering about this universe!