Why NASA is not "happy" to announce why the James Webb telescope is delayed by 2021

The scientific community and the scientific public eagerly anticipated the launch of the James Webb Space Telescope because NASA began doing so in the second half of the 1990s, the Largest space telescope with Hubble Space Telescope Promises of change These devices will be launched in spring 2020. NASA officials announced Wednesday that the space observatory will be launched on March 30, 2021 and that another billion dollars will be needed. NASA officials say that they have 80% confidence that they will kill this goal.

Regardless of the authorities' guarantee that "Webb is worth the wait," the tone of Wednesday's press conference was wolf and he did not believe things were going well.

Thomas Zurbuchen, Associate Administrator of NASA's Science Mission Directorate told reporters, "Do not be fooled: I am not happy to share this story with you. To do this, we always want to talk about the successes we have. If you take a look at our list of missions, you can see how often we provide missions based on cost and schedule, and we're very excited about that.

In 2003, NASA announced the launch of JWST in 2011. In 2011, the entire project was re-profiled to solve these projects, in which there were some very important questions about the project. integrating the telescope into the spacecraft. The budget went from $ 2.5 billion to $ 8.7 billion and the planned launch date was reached in October 2018.

Then, in September 2017, NASA announced the launch of the Space Shuttle in the spring of 2019. After six months, the NASA launch in the spring of 2020 in March 2018. There will be the estimated date of 2021. Oh, and by the way, there is no other delay in the launch date .

With launch delays, NASA announced the results of a review of the council's report whose goal is to see what went wrong and what should be done better. In response to NASA's response to these concerns and how they will be addressed in the coming years.

The telescope, which scientists have hoped to use to see the light of light since the beginning of the universe, uses a large mirror and sun shield to observe the long wavelength of light by compared to the Hubble telescope, which he uses basically will replace. The Hubble Light Collector Mirror is less than eight feet in diameter, while JWST will be over 21 feet – a major improvement to help researchers collect the faint glow of light from the edges of the universe and understand our origins of the universe. 19659003] This huge material requires a solid spacecraft to carry it, and in recent months, the ratio of loosened screws and loose washers of the spacecraft during the acoustic test exposes problems with the telescope, Northrop Grooming construction contractor is done. To highlight these problems and understand how to get full in the space, they will need more money than Congress.

In the latest accounting, Stephen Jurczyk, Associate Administrator of NASA, told reporters that JWST's new lifecycle will now be $ 9.66 billion to support the revised release date. He said, "This cost includes integration and testing, the launching commission and five years of operation, during which extraordinary scientific work will be done."

All is not good for the ZST. But NASA officials are trying to be optimistic even though they believe it's disappointing after the program and after the budget.