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Re:The $11B Webb telescope aims to probe the early universe by Vvector on Wednesday December 08, 2021 @06:31PM (#29491983)
It is due to orbit in L2, in eternal shade of earth. So no solar power
Re:The $11B Webb telescope aims to probe the early universe by gadnuk on Wednesday December 08, 2021 @06:47PM (#29492117)
No, that's not true. It will be orbiting around L2 and not stay at L2, so it will have access to sunlight, which powers the solar array that faces the sun. The actual observatory and the mirror are shielded by the sunshield.

Here is Dr. John Mather explaining it: https://youtu.be/4P8fKd0IVOs?t=1321