How @NASA is using a robotic arm to assemble #JWST's mirror @NASAGoddard: http://go.nasa.gov/1noagln #MirrorSeasonpic.twitter.com/uE33suOqvO
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@NASAWebbTelescp@NASA@NASAGoddard Is the reflective surface the actual mirror, or is it a covering?#curious
@MRK_Ham @NASA @NASAGoddard I will add that flight mirrors are assembled with a protective black cover, removed afterwards.
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@NASAWebbTelescp@NASA@NASAGoddard Afterwords meaning during assembly... will they be covered after assembly? Does folding up protect them?Thanks. Twitter will use this to make your timeline better. UndoUndo
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