Man has been interested in the outer space for thousands of years. It has been almost over forty years man's first landing(登陆) on the moon. Now, some people believe that space exploration(探索) is a waste of time and money. It is true that it (cost) billions of dollars to develop the space research, but people just get little information.
However, every coin has two sides. There (be) still a lot of other people who believe that space exploration has more (advantage). And I agree with them. Many new products, such weather and communication satellites(交通卫星), are also products of space programs, and they are good people all over the world. And what's more, people (know) about some scientific knowledge of the outer space already.
We believe that it will bring much(many) advantages in the future, which we can not even imagine now. That's why several countries are trying hard (carry) out space exploration all the time. Let's wait and see.
