The James Webb Space Telescope Has Cooled Down Rapidly

It is one of the most expensive and most delayed missions of NASA and ESA. Although it may sound like something negative, it is good news.

Almost four months after its successful launch, the James Webb Space Telescope (JWST) is still being deployed in space. It will take months for it to work at full capacity, but it seems that the mission is going well. The objective of this technological ingenuity (which has been delayed since the 90s and cost 10,000 million dollars) is to explore deep space in an ambitious collaboration between NASA, ESA and the CSA.

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This week, the mission team at NASA's Jet Propulsion Laboratory confirmed that the Webb telescope has reached the necessary temperature to begin observing tasks. A critical part of the telescope, the Mid-Infrared Instrument (MIRI), recently reached its final operating temperature below -266 degrees Celsius.

"The MIRI refrigerator team has done a lot of work to develop the pinch point procedure," Analyn Schneider, MIRI project manager, said Wednesday. "The team was excited and nervous at the same time to start the critical activity. In the end, the execution of the procedure has been a book, and the performance of the refrigerator is even better than expected."

Although the news may sound negative, it seems that the mission is going according to plan for the first time in many years. It shows that the collaboration between the different space agencies seems to bear fruit.

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