NASA canceled the SLS rocket launch for the second time in a week, or is it wise?

Science Fiction Network September 5th (Wang Xiuxia) Recently, NASA has canceled the established launch plan of the SLS SLS again, which is the second time NASA canceled the SLS rocket launch within a week. NASA executives said they supported this decision and said they were ready to wait longer. After clarifying the reasons for hydrogen fuel leakage and completely solving this problem, they would try again later or October this month. People in the industry said that considering the importance of the entire moon landing plan, NASA's caution is actually wise.

(Picture source: NASA)

Last Saturday, millions of people around the world watched live reports, and the crowd gathered on the beach of Florida, hoping to witness the historic explosion of the SLS of the space launch system. However, after the start of the launch, engineers detected a leak on the hydrogen fuel pipeline connection to the Rockets.

When the hydrogen concentration in the surrounding air exceeds 4%, combustible events may occur. Experts said that the leakage volume was large, and its concentration was 2-3 times that of the 4%limit. As a result, when the leakage failed three times, NANA canceled the launch plan at 11:17 am on Saturday.

The launch plan has been canceled once, why should it be canceled again?

After the launch was canceled last Saturday, NASA has begun to consider the next plan. They have also conceived to re -connect the fuel pipeline and try to launch again in a few days, but considering that the last leak was so large, they did not have enough confidence to solve this problem.

NASA Director Bill Nelson said at a press conference that "the cost of two cancellations is obviously much lower than the cost of one failure."

It is reported that NASA has spent more than $ 40 billion to develop SLS rockets and Orion spacecraft. The overall progress of the project has been a few years later than the plan, exceeding the budget billions of dollars. As NASA invested too much funds on the SLS rocket, the launch failure may be delayed for a few years, and the masses may also question the value of the moon landing plan. Rockets must be successful at one time, and there are no more differences.

In addition, another problem faced by SLS is its emergency self -destruction system. The system is designed to explode when the rocket deviates from the route. It needs to be re -inspected before the next launch, and this can only be completed in the assembly building. The person in charge of NASA said that it would take a few weeks to bring the rocket into and out of the assembly building.

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