The James Webb Space Telescope’s five-layer sunshield, seen here during ground testing at Northrop Grumman’s factory in Redondo Beach, California. Credit: NASA/Chris Gunn
Mission controllers started the delicate work of tightening the five razor-thin layers of the James Webb Space Telescope’s sunshade Monday. Managers said the nearly $10 billion observatory is “hunky-dory” after pausing deployments over the weekend to adjust the observatory’s power levels and ensure motors needed for the tensioning are in tip-top shape.