The word "Space adventure" has captued a large number of people's beart. Many men have been ttracted by the
unknowm world and have desired to live in space at some future time. The universe is the last and infinite 1- explored region for buman beings. However, space re- searches do not accomplish only by yeaming. These re- searches cost hugely. Another way to express this is that spending money always has its opportunity cost. In other words, money spent on some venture could have been used for financing some other alternative venture. Some people believe that money spent on space research bene- fits all of humanity. Other people believe that there are better opportunities for spending this fund.
This furst group of people claims that space researcbes have helped all of humanity's lives exthremely. They point out that researches on space have informed us about much environmental damage which we have caused to our planet. Similarly,they declare that the present satellite system is due to the researches done in the past in space. There are also numerous new materials and inventions that can be taced directly to space researches. These people hope to spend more money on researches, visit all the planets, and build space colonies.
On the other hand, there are people who assert that money spent on space is a complete waste because it does not have sufciently direct beneft to all the humanity. For instance, there is a sizable portion of the humanity does not have any access to food, education, sanitation, bealth care and especially peace.
Personally, I find that I cannot align myself completely with either group. I have some reservations about both positions.No one can deny that weather satellites and communication satellites are useful investments. But un- realistic researches like exploring Mars or Venus does not have any good bearing on most peoples' development at the present. Some scientists may be interested in the composition of those planets, but the opportunity cost is extraordinary. In my opinion, it may cause lack of social infastructures, if states inject immense funds into space researches in the limited budget.
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