—Better to spend money on our future,than on other projects that would have a much lower potential reward.
—If we were to colonize another planet,it would reduce the population on Earth,which is already overpopulated.This will result in the survival of our species when our planet can no longer support human life.
—Multinational space stations have helped diplomacy(外交) among multiple nations.
Cons of space travel:
—There is a very large percentage of the earth’s oceans we have not been explored.We should continue exploring the remaining unknown regions of our oceans before continuing to another planet.
—The funding for space exploration comes from the tax payers’ pockets.Many do not think that they should be forced into paying for something they oppose.
—The total contribution from space travel is minimal,when considering the total cost.
—We should not be thinking about colonizing (占领) a moon,or a planet.It’s better to save our existing planet first.If we are to destroy one planet,what is to stop us from repeating the_mistakes on another planet.
—Not only is the cost of manned space missions expensive,but space travel can have a serious effect on the human body over an extended period of time.The only way to solve it is by using robots,which reduces the human risk factor,and reduces the overall cost.
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