一、火星的梦想自从发现火星以后,人类就一直梦想登陆火星。在不久的未来,一个太空项目将开始使这一梦想具有实现的可能性。不久前,一批科学家、美国宇航局的官员、私营太空公司和其他航天机构的代表聚集在美国首都华盛顿,在人类登陆火星的专题会议上全面讨论了有关问题。会议提出,将在21世纪30年代派遣宇航员登陆火星。但是登陆火星可谓困难重重,并且还有一个大问题:目前缺少能够将人类送上火星再将其带回地球的技术。如此规模的星际 First, the dream of Mars Since the discovery of Mars, humans have been the dream of landing on Mars. In the near future, a space project will begin to make this dream possible. Not long ago, representatives of a group of scientists, NASA officials, private space companies and other space agencies gathered in Washington, the capital of the United States, to hold a comprehensive discussion on the issue at a special session on humanity’s landing on Mars. The meeting proposed that astronauts will be dispatched to Mars in the 1930s. But landed on Mars can be difficult, and there is a big problem: there is a lack of technology that can send humans back to Mars and bring them back to Earth. Star of such magnitude