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Posts tagged: Apollo

[Blog] Weekly Awesomeness Round-up – 7/26/10

This brand new set of photos shows one of the James Webb Space Telescope’s primary mirror segments, all coated in gold. This isn’t a flight mirror, but what’s known as an engineering design unit (EDU). The real segments will look just like this, though. The real ones are currently being made and tested – they will ultimately be coated in gold just like this though, because gold reflects red light extremely well. (Which is what you want in an infrared telescope.)