本书内容主要精选现代天文学科的各个项目或领域，介绍其观测过程、科学原理、发展方向和应用前景等，使青少年站在当今科技的新起点寻找未来开发宇宙空间的突破口，不断提升自己的天文领域知识。(This book mainly selects all projects or fields of modern astronomy and introduces their observation process, scientific principles, development direction and application prospect and others to let adolescents stand on a new stating point to look for the breakthrough in the future development of cosmic space and constantly improve their knowledge in the field of astronomy. )