James Webb Space Telescope experts give realtime updates in the final stages of the telescope’s sunshield deployment. A major milestone, the successful shield tensioning will ensure Webb’s mirrors stay cold enough to #UnfoldTheUniverse.
The fivelayer, tennis courtsized sunshield is a critical part of the telescope because the infrared cameras and instruments aboard must be kept very cold and out of the Sun's heat and light to function properly.
About the sunshield: https://webb.nasa.gov/content/observa...
Where is Webb?: https://www.jwst.nasa.gov/content/web...
Credit: NASA