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derektank • yesterday at 11:21 PM • 1 reply • view on HN

“The James Webb telescope is just a three mirror korsch telescope in space. We’ve known how to build those since the 30s and we’ve been putting telescopes in space since the 60s. Doesn’t seem that impressive”

This is what you sound like to everyone else here


Replies

origini • yesterday at 11:31 PM

And i can easily explain to you why this is not the case.

They put the most advanced telescope at L2 which is the most remote location 1.5 million km away which can't be serviced and can't be rebuild easily.

It has nanometer optical precision in space which needs to be cooled through multiply layers of high tec foil.

Its mirrors are precicse to nm level.

Took 25 years of planning and 5 years of building.