Heaven and Earth: Human Spaceflight and Human Society: XinXueTang Digital Edition

This book tells a story of humans entering the space and surviving in it. It represents a unique perspective to this unknown world and revealed that everyone has the right to explore the space. The book starts from the experience of a stray dog as human's substitute, describing people's caution during the exploration. Is human the only lucky dog in the universe? Where is the earth heading for?