Field Series 1 — Field 1191, NIRSpec prism
S01:E04

Field Series 1 — Field 1191, NIRSpec prism

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Episode description

One JWST observation, put through the motif instrument three ways.

The cube is jw01191-o017, taken with NIRSpec’s prism — the widest and coarsest setting the instrument has, the whole near-infrared in one low-resolution sweep.

First, fourteen minutes of about ninety-five passages the finder judged distinctive: shapes rare enough to stand out that nonetheless recur. Then ninety-three minutes of the open field, where each reading of the cube runs twenty-four minutes in turn — brightness, then obstruction, then gradient, then some twenty minutes into the line reading before the piece moves on. Last, seven minutes of fifty passages ranked by how few times their shape occurs anywhere in the cube.

What this cube gave up: its distinctive material leans hard on flow and holonomy — apparent source velocity, and the round-trip curl of the Doppler field. Its rare suite contains no brightness passages at all.

Before Birth is an acknowledged test series.

A note on the silences: this piece runs quiet for 22m41s in total, the longest stretch 4m29s. Nothing is wrong with the file.

The silence is the recording. This is a translation of a JWST spectral cube — the engine sounds what the data does, not a continuous signal — so where the cube has nothing to report, nothing sounds.

These recur about every 4 minutes — once per traversal pass across the same empty band.

Source data: public JWST observations obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute, operated by AURA under NASA contract NAS 5-03127. Programs #1191, #1328, #1621, #2457, #2926, #4426, #4528, #5086. We acknowledge the teams led by Lee Armus (#1328) and Roberto Maiolino (#4426) for developing their observing programs with a zero-exclusive-access period. Observation identifiers are given above.

Audio © 2026 Far Wide Radio — licensed CC BY-NC-SA 4.0.

All artwork by Elliot Fairbanks Junior.

Archived and citable: doi.org/10.5281/zenodo.21693766

16:02Silent band — empty spectral channel (34 seconds)
17:04Silent band — empty spectral channel (49 seconds)
19:50Silent band — empty spectral channel (45 seconds)
20:43Silent band — empty spectral channel (47 seconds)
21:32Silent band — empty spectral channel (1m03s)
22:36Silent band — empty spectral channel (1m24s)
24:22Silent band — empty spectral channel (50 seconds)
25:14Silent band — empty spectral channel (1m29s)
39:41Silent band — empty spectral channel (36 seconds)
40:20Silent band — empty spectral channel (3m28s)
43:50Silent band — empty spectral channel (50 seconds)
44:42Silent band — empty spectral channel (4m29s)
49:13Silent band — empty spectral channel (3m04s)
53:03Silent band — empty spectral channel (44 seconds)
54:07Silent band — empty spectral channel (34 seconds)
54:42Silent band — empty spectral channel (1m15s)