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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.


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

We now have two webcams in the Building 29 cleanroom at Goddard, one showing the left side and one showing the right. The camera images below are updated every minute. The cleanroom is generally occupied from 8:00am to 4:30pm Eastern, Monday - Friday. There may not be much activity outside of these hours. The image is updated once per minute.

On the WebbCams Today

WebbCam 1:

Currently our the Pathfinder (or test) backplane for the James Webb Space Telescope is sitting in the STTARS (Space Telescope Transporter for Air Road and Sea) transport container. Mounted on it are two spare primary mirror segments, only one of which (our engineering design unit mirror) is gold-coated. Over it is a protective cover.This black latticed structure is the "spine" of the telescope and will support the mirrors as well as the instrument module. It has three long booms which extend outwards to hold the telescope's round secondary mirror. This weekend the cover is due to be placed on this container and then the whole structure will go to NASA Johnson for cryogenic testing.

WebbCam 2:

A view of the STTARS(Space Telescope Transporter for Air Road and Sea) transport container lids. You may see them lifted via crane and placed over the pathfinder backplane structure.

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 (requires flash).

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.

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.

web cam screenshot

web cam screenshot

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