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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。