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Man has been fascinated by outer space for thousands of years, It has been almost over forty years since man s first landing on the moon. Now, some people believe that space exploration is a sheer waste of time and money. They point out the thct that it cost billions of dollars to can3 on the space research, but a little infrmation was brought back. In addition, the time and money spent on space exploration is too much to calculate. However, every coin has two sides. There are still a majority of other people who believe that space exploration has more advantages. And I agree with those people. Many new products, such as weather and communication satellites, are also products of space programs, and they have benefitted people all over the world. And what s more. scientific knowledge about outer space has been acquired by the mankind. We benefited a lot from space exploration. We believed that it will bring more benefits in the future, which perhaps we can not even imagine now. Space exploration is a challenge to human beings. That s why several nations try hard to carry out space exploration continuously. | 
