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Official site of the design, build, test and launch of JWST.


JWST Science overview, future home of science data and images.


Overview of the spacecraft, mission and science of JWST.

JWST related content on the NASA HOME PAGE plus links to NASA’s other great activities and missions.


JWST related Missions.


News, Careers, Locations & more.

Watch the Webb In Progress on our "Webb-cam"!

Click these thumbnails or scroll down for larger images and descriptions of current clean-room activity.

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On the WebbCams Today

WebbCam 1:

The black latticed structure you may see is our flight Integrated Science Instrument Module (ISIM) structure. It holds our flight instruments. View images of the ISIM on Flickr.

WebbCam 2:

A view of the assembly stand where JWST's mirrors will be mounted onto the backplane structure that holds them. The test version of this backplane (called the Pathfinder) was recently in the cleanroom. It (and the two test mirrors mounted on it) is on its way to NASA Johnson for cryo testing. View images of the Pathfinder on the Flickr.

About the Spacecraft Components

To learn more about the various components of the Webb Telescope, see the Observatory page as well as our interactive 3d spacecraft model (new window) (requires flash).

Webb-cam Time-Lapse Movies

Be sure to check out our selection of time-lapse movies that compress hours and even days of Webb-cam footage into a few minutes.

General Information:

You are looking at the largest clean room of its class in the world; it is located at NASA Goddard. These WebbCam views take you live into the NASA clean room where the Webb Telescope is being integrated and tested. Explore NASA Goddard's Cleanroom (new window).

Webbcam Usage:

The image is updated once per minute. You can view the webcam on our Home page or at a slightly larger size on our WebbCam page.

Cam 1

web cam LARGE screenshot

Cam 2

web cam LARGE screenshot

(There is always the possibility that the webcam may not function properly. Please bear with us if that is the case.)