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.
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2016-02-29
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