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The James Webb Space Telescope, the successor to the Hubble Space Telescope, has finally been assembled.
The James Webb space telescope was originally scheduled to be launched and put into orbit in 2011, but if a problem occurs when working at a location 1.5 million kilometers from Earth, it is almost impossible to repair it. All preparations must be completed before launch, and even after the completion of the main mirror in November 2016, defects were discovered during component integration and assembly, delaying the launch plan. Eventually, the telescope was assembled and moved for testing.
The James Webb space telescope has a protective film on a 5-layer aluminum foil that protects and cools the device from strong light including infrared rays from the sun. The main mirror, made of 6.5m beryllium, was lifted with a crane to avoid damage and carefully bonded to the aircraft. Engineers still have to perform major mirror and airframe electrical wiring connections and various functional tests. According to the current plan, the launch of the James Webb space telescope will take place in 2021. Related information can be found here .
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