本书立足于《流浪地球》小说原著，深度挖掘小说中的科学知识。主要内容是流浪地球中的天文物理学，并将其中的科学知识和初中、高中的物理、化学、地理等文理知识结合起来。本书的目的是拓展初中生、高中生的科学知识的深度和广度。阅读本书，有助于他们复习课本中的科学知识，同时提高对相关知识的理解深度。即使是小学生和成人，也能从本书中获得新知识和新体验。图文结合，图片采用二次元（场景）和写实的（科学仪器）两种画法，迎合青少年读者的兴趣喜好。
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