James Webb Space Telescope Completes Crucial Sunshield Deployment

The James Webb Space Telescope has successfully deployed all five layers of its tennis-court-sized sunshield, a prerequisite for the telescope’s science operations and the most nerve-wracking part of its risky deployment. The challenging procedure, which required careful tensioning of each of the five hair-thin layers of the elaborate sunshield structure was a seamless success today (Jan. 4). … Read more

NASA’s New Flagship Telescope Fully Deploys Sunshield in Critical Mission Milestone

The James Webb Space Telescope fully deployed its tennis-court sized sunshield Tuesday, a critical milestone for the success of its mission to study every phase of cosmic history, NASA said.   “All five layers of the sunshield are fully tensioned,” said an announcer at the observatory’s control center in Baltimore, where team members cheered, a … Read more

With James Webb Space Telescope’s huge sunshield in place, focus shifts to big mirrors

We can all take a deep breath before the James Webb Space Telescope’s next major deployment. On Tuesday (Jan. 4), Webb finished bringing its huge, five-layer sunshield up to the proper tension, wrapping up the most complex and tricky operation of the $10 billion observatory’s lengthy deployment phase.  The mission team can therefore now turn … Read more

James Webb Space Telescope completes tricky sunshield deployment

The James Webb Space Telescope has successfully deployed all five layers of its tennis-court-sized sunshield, a prerequisite for the telescope’s science operations and the most nerve-wracking part of its risky deployment. The challenging procedure, which required careful tensioning of each of the five hair-thin layers of the elaborate sunshield structure was a seamless success today … Read more

NASA delays tightening James Webb Space Telescope sunshield to study power system

NASA personnel are spending the day studying the power subsystem of the massive James Webb Space Telescope to ensure the observatory is ready to execute a key procedure: tensioning its vast sunshield. The Webb space telescope, which launched on Dec. 25, is conducting a month-long deployment procedure necessary to prepare the telescope to gather data. … Read more

James Webb Space Telescope team taking a rest day before sunshield tensioning begins

To celebrate the new year, consider taking a day to rest. That’s what the team managing the complicated process of deploying the James Webb Space Telescope are doing, taking Saturday (Jan. 1) off. Work will resume on Sunday (Jan. 2), according to an agency update. The pause comes after a long day on Friday (Dec. … Read more

James Webb Space Telescope unfurls massive sunshield in major deployment milestone

One of the James Webb Space Telescope’s most nail-biting deployment steps is safely in the books. The $10 billion observatory unfurled its huge sunshield on Friday (Dec. 31), carefully unfolding the five-layer structure by sequentially deploying two booms. “Shine bright like a diamond. With the successful deployment of our right sunshield mid-boom, or ‘arm,’ Webb’s … Read more

Why the James Webb Space Telescope’s sunshield deployment takes so long

NASA’s James Webb Space Telescope is three days into the deployment of its massive sunshield — and it still has about three days to go. The $10 billion Webb launched on Christmas Day (Dec. 25) to seek out heat signals from the early universe. To pick up these faint signals, the observatory’s optics and instruments must … Read more

There Was a Major Unexpected Benefit to James Webb’s Christmas Launch

After a detailed analysis of where the James Webb Space Telescope is now (29 December 2021) and how it got there, NASA determined the observatory should have enough propellant to operate in space for significantly more than 10 years in space.   Webb’s mission lifetime was designed to be at least 5-1/2 years, and mission … Read more

James Webb Space Telescope uncovers massive sunshield in next step of risky deployment

NASA’s James Webb Space Telescope removes the covers from its sunshield in this animation of the critical deployment step that occurred in space on Dec. 30, 2021. (Image credit: NASA) The James Webb Space Telescope has unwrapped its sunshield, crossing another important item off of its lengthy and risky deployment to-do list. After successfully extending … Read more