Đáp án: Sample

People have spent a lot of money on space travel because it brings us many benefits. First of all, through space missions, we might find new minerals and precious materials in other planets that could make our lives much easier. Secondly, space exploration brings together a lot of smart people from many different fields to work on the same problem. This has resulted in not only fantastic scientific discoveries but also many useful inventions. Thirdly, as our Earth is becoming overpopulated, we might be able to colonise other planets such as Mars and make their atmosphere suitable for human life. In conclusion, people are continuing exploring space because of its advantages. (111 words)