When will be launched 
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With all flight components of the #Webb telescope under one roof at @NorthropGrumman, technicians work to ensure the readiness of the sunshield/spacecraft element for assembly with the rest of the observatory in 2019. #JWSTpic.twitter.com/Lh69qI8Fha
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Estimated 2021, currently
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Jeez! 2021 now? You guys just take your sweet time. Nothing like having a fat cushy job to milk into infinity. If you try hard enough you can delay it another 5 years. Great job you're doing! Hooray for JWST!
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The sun shield had a tear in it, and some damages we're caused by the incorrect cleaning supplies used (NASA wasn't at fault). They need to make sure it will unfold and function properly, because we won't be able to service this telescope. We've got one chance, be patient.
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Ready for it
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