Engineers have made considerable progress in checking off NASA’s James Webb Space Telescope’s final series of tests. Three big milestones have recently been completed, bringing the world’s most complex and powerful space science telescope ever built much closer to being fully prepared for its million-mile journey to orbit. These three testing milestones are outlined below:
<p>Read more here: go.nasa.gov/3ejs0fa
</p><p>In this image: Testing teams can be seen carefully working a critical part of the observatory known as the deployable tower assembly that helps Webb maintain its sub-zero operating temperature by separating its cold optics from its warm spacecraft bus.
</p><p>Image credit: Northrop Grumman
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James Webb Space Telescope
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