With the conclusion of the year just days away, we are excited to announce #NASAWebb has cleared one of its most important testing milestones to date. Webb’s 5-layer sunshield has been successfully deployed and tensioned into the same configuration it will have once in space! 
<p>Read more here: go.nasa.gov/2KAESkU
</p><p>Webb is now in its final series of deployment and checkout tests before the observatory is packed for shipment to French Guiana for launch aboard an @ArianeGroup Ariane V rocket. These tests will verify that Webb will deploy perfectly in space after its launch. 
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Image Credit: NASA/Chris Gunn
<bdi><a href="https://www.wikidata.org/wiki/Q110278636" class="extiw" title="d:Q110278636"><span title="American photographer">Chris Gunn</span></a>
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CC BY 2.0
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