And, yes, thats real gold about five mens wedding rings worth of the metal.
We had a question: why?
What reason is there for the mirror to be gold-plated?
Well, we have the answer.
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The telescopes observing infrared the key in of light emanating from the deep cosmos.
Infrared light penetrates these clouds and allows us to see inside.
Aluminum reflects 85%, silver up to 95%, and gold up to99%.
Now you know why the mirrors of the James Webb Telescope are gold-plated.
Story byIoanna Lykiardopoulou
Ioanna is a writer at TNW.
With a background in the humanities, she has a soft spot for social impact-enabling technologies.
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