#Webb will see the universe ~250 million years after the Big Bang, when the first stars and galaxies started to form. #FunFact #JWSTpic.twitter.com/2S6ANwsIVf
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That's gold? Is that because you are looking deeper into IR than normal visible spectrum telescopes?
It's real gold (but a very thin coating). Gold maximizes the mirror's ability to reflect infrared light. More: https://jwst.nasa.gov/faq.html#gold
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They did this to see high Z galaxies and quasars, plus Hydrogen alpha?
Thanks. Twitter will use this to make your timeline better. UndoUndo
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