Các chính phủ có nên dùng tiền vào việc nghiên cứu không gian hay không ?

There is an argument that exploring space is a waste of money and that there are more urgent needs to be addressed on earth, such as reducing poverty and preventing environmental destruction. However, I completely disagree with this opinion for two reasons.

First of all, many of the technologies we take for granted  today were originated thanks to space research. Take satellite technology, for example, which we depend on for broadcasting and weather forecasting. Without satellites, we would not be able to follow global events as they happen, nor give populations any warning of approaching storms. Space research has also led to the development of new lightweight materials that offer us heat protection and enable food preservation. Therefore, the challenge of sending human beings into space has often driven the development of new technologies that benefit our everyday lives.

Second, we cannot foresee the distant future, so we ought to develop the capability to escape from the earth. Gradually, we are learning how humans can survive for long periods in space and even travel to other planets in the future. If space exploration is halted, this valuable knowledge will never be acquired. It is true that environmental destruction is also a serious issue, but it is also true that we remain dependent on our environment if we never accept the challenge of exploring other worlds.

In conclusion, while we undoubtedly face serious problems on our own planet, it is imperative that we continue to explore space. This will promote further technological advances as well as provide a possible means of escape should earth become uninhabitable in future. Ideally, all nations should cooperate in the advancement of space research.

(278 words, IELTS 8.5)

used to talk about something that may possibly happen or be true : 

should somebody/something do something 

Should you need any help (= if you need any help ) , you can always phone me at the office. 

take something for granted 

Take for granted : . To consider as true, real, or forthcoming; anticipate correctly.

1. to fail to appreciate the value of something So many of us take clean water for granted. 

2. to accept something as true without questioning or testing it We take it for granted that our children will be better off than we are. Opposite of: not take anything for granted 

See also: grant, take

"Ought to" is used to advise or make recommendations. "Ought to" also expresses assumption or expectation as well as strong probability, often with the idea that something is deserved