The James Webb Space Telescope is preparing to be sent to the launch pad at the Kuru Cosmodrome WASHINGTON, Jan 4 Specialists have successfully completed the deployment of the thermal shield of the latest telescope «James Webb», which launched from Earth in late December, NASA said. broadcast on the US space agency website. 
New images from Mars released by Chinese probe NASA said the deployment of the shield, the size of which reaches the size of a tennis court, is «the completion of an important milestone» in the launch of the latest infrared telescope. The operation to open the shield was considered the most difficult and risky stage in the launch of the space observatory. It lasted about three hours — during this time, gradually, at the command from the Earth, each layer of the screen, created from aluminum-coated kapton, was «straightened» and «stretched». «James Webb» took off from Earth on December 25. The telescope was launched into space by the European launch vehicle Arian 5. The next stage after the opening of the shield, which should cover the telescope from the radiation of the Sun, Moon and Earth, will be the opening of the secondary mirror, and then — the main mirror of the telescope. NASA says the time of each stage will be determined by the mission staff, depending on the state of the probe. 
it will take about a month to prepare the telescope for operation, and the first scientific data from it will begin to arrive in six months. The project of the James Webb telescope has been implemented for more than two decades with the participation of the United States, Canada and the EU with numerous technical difficulties and multiple budget surpluses. It is estimated that the final cost of the James Webb mission, which, according to its creators, is a hundred times more far-sighted than the Hubble Space Telescope, has reached $ 10 billion. 
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