James Webb Space Telescope tests its giant mirror ahead of 2021 ...
James Webb Space Telescope - Wikipedia
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NASA's next big space observatory will likely miss its target ...
James Webb Space Telescope on Track for March 2021 Launch, NASA ...
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James Webb launch slips another year to 2021 after Independent ...
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JWST remains on schedule for March 2021 launch - SpaceNews.com
James Webb's mirror is revealed - BBC News
ESA - ESA confirms James Webb telescope Ariane launch
James Webb Space Telescope delay pushes launch to May 2020 - SlashGear
NASA has completed the $8.7 billion James Webb space telescope ...
