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NASA James Webb Space Telescope opens golden mirror one last time on Earth – CNET

NASA hopes to launch the much-delayed space telescope on Halloween to investigate the secrets of the early universe.



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One wing of the James Webb Space Telescope’s main mirror opens into place during a final test of the mirror deployment system in May 2021.
NASA/Chris Gunn
The James Webb Space Telescope has opened its massive mirror for the final time here on Earth. The next time the golden expanse blooms like an origami flower, it will be in space. 
“The conclusion of this test represents the team’s final checkpoint in a long series of tests designed to ensure Webb’s 18 hexagonal mirrors are prepared for a long…

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