除了我们居住的星球——地球外,在茫茫的宇宙之中,其他天体上还有没有生命,甚至是高度进化的人呢?科学家们如何千方百计去和他们取得联系?读完《迈开外太空探索的第一步》,将会使你得到满意的答复。本文作者C.Sagan是美国科纳尔大学行星研究实验室主任,他是一位著名的人类与宇宙关系方面的评论员。 Except for the planet we live in - the Earth, in the boundless universe, are there other lifeless or even highly evolved people in other celestial bodies? How do scientists connect with them in every possible way? After reading “Towards Exploring Outer Space The first step ”will give you a satisfactory answer. C.Sagan, the author of the paper, heads the Planetary Research Laboratory at Cornell University in the United States and is a famous commentator on the relationship between the human and the universe.