@NASAWebbTelescp This stuff is so cool. In another life, I'm right there building the telescope!!
Keep your space mirrors clean with snow! (Carbon dioxide snow!) http://www.nasa.gov/image-feature/goddard/engineers-clean-mirror-with-carbon-dioxide-snow … #JWSTpic.twitter.com/qh7EnKSIcJ
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@NASAWebbTelescp Great photo! How does the CO2 snow work in a cleanroom setting?Thanks. Twitter will use this to make your timeline better. UndoUndo
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