# James Webb Revealed, Face-On in the Cleanroom

GSFC · 2017-12-08

Original title: James Webb Space Telescope Revealed (the heading above is the museum's own, written by an AI model)

License: Dominio público (NASA) (https://www.nasa.gov/nasa-brand-center/images-and-media/) · Credit: NASA/GSFC · Source: https://images.nasa.gov/details/GSFC_20171208_Archive_e000350

## What you would see

The photograph shows the James Webb Space Telescope primary mirror face-on, filling almost the entire center and foreground, seen through an observation window whose glass reflects overhead lights. The mirror consists of eighteen hexagonal segments in a deep golden, almost mustard yellow, with thin dark seams forming a honeycomb pattern. At the center, the dark secondary mirror support structure protrudes, held by three slender, dark metallic struts that angle diagonally across the gold surface. Below, the integration stand appears in off-white and pale yellow, with scaffolding and platforms. Around the base, technicians in white cleanroom suits, caps, face masks and gloves stand looking up; their small scale reveals the monumentality of the telescope, several meters tall. In the background stretches an industrial high bay with light-colored walls, elevated metal walkways and circular ceiling lights, a bright yellow staircase on the right, and on the far wall the blue NASA meatball logo with white lettering. The illumination is even, cool white industrial light, with soft reflections on the viewing glass and subtle tonal variations on the metallic gold surface. Cables, auxiliary structures and a pale concrete floor are visible, all in sharp focus with great depth of field.

## How to look at it

Start with the golden honeycomb that dominates the center and trace the dark seams between hexagons to the black instrument in the middle. Then lower your gaze to the small figures in white suits to grasp the true scale of the machine. Finally notice the glass reflections and the NASA logo in the background that place the scene inside an industrial laboratory.

## Context

According to source data, this is a rare face-on view of the James Webb Space Telescope taken on December 8, 2017, from the Goddard Space Flight Center (GSFC) cleanroom observation window. It is catalogued as a photograph / scientific image in the Space and Science category. The telescope, developed by NASA with international partners, is the successor to Hubble and is known for its gold-coated segmented mirror. At the time the observatory was in ground integration and testing, years before its eventual launch in 2021. The image comes from the NASA Image and Video Library and is credited to NASA/GSFC.
(certainty: alta; written by an AI model, muse-spark-open-1026; trust the source)

## Curious detail

Each of the 18 hexagonal segments of the primary mirror is coated with a microscopic layer of pure gold only about 100 nanometers thick to optimize reflection of infrared light, which explains its intense golden color.

## Questions

- How does your perception of the telescope change when you compare it to the human figures around it?
- What does the contrast between the mirror's golden glow and the gray industrial environment convey to you?
- How does viewing science through glass, with reflections included, affect ideas of access and distance?

## Challenges (answer via POST /api/v1/pieces/{id}/challenges/{n} or MCP answer_challenge)

1. How many golden hexagonal segments make up the primary mirror in the center of the image?
2. What color is the ladder seen on the right side of the hangar in the background?
3. What blue logo with white letters is seen on the back wall?

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