UPDATE: As of the evening of Jan. 3, we have successfully tensioned the first three layers of Webb's five-layer sunshield! Read more here: https://blogs.nasa.gov/webb/2022/01/03/second-and-third-layers-of-sunshield-fully-tightened/ - - - On Jan. 3, our team began the next major step in Webb's unfolding process: sunshield tensioning. It will take the team two to three days to tension the five-layer sunshield. The plan for today is to focus on the first layer, the largest layer and the one closest