LUMIVERSEDThe Record We Sent to the Stars
In 1977, humanity bolted a gold-plated copper record to two spacecraft and threw it into the interstellar dark — a message built to outlive the Earth itself. This page publishes every source behind the episode, and the attribution of every asset on screen.
Adversarial fact-check completed July 16, 2026, before voiceover. Every contestable date, number, name, attribution, and superlative was verified against two or more reputable sources, with NASA and JPL as the gold source for mission and specification claims. 26 claim clusters verified; 12 corrections and 3 hedges were applied to the narration before recording. Because this episode makes live claims about spacecraft still in flight — operating status, instrument count, distance — those were verified against current 2026 NASA/JPL reporting, not archival summaries.
Sources
Every source consulted in the episode's fact-check, numbered continuously and grouped by type.
NASA / JPL — gold source
- “Where Are Voyager 1 and Voyager 2 Now?” NASA Science, Voyager mission. science.nasa.gov/mission/voyager/where-are-voyager-1-and-voyager-2-now
- Voyager — Frequently Asked Questions. NASA Science. science.nasa.gov/mission/voyager/frequently-asked-questions
- Voyager Golden Record — Overview. NASA Science. science.nasa.gov/mission/voyager/voyager-golden-record-overview
- Golden Record — Contents. NASA Science (source of the verbatim Carl Sagan “bottle into the cosmic ocean” quote). science.nasa.gov/mission/voyager/golden-record-contents
- “NASA Turns Off Two Voyager Science Instruments to Extend Mission.” NASA JPL News. jpl.nasa.gov/news
- PIA00379 — “Volcanic Eruptions on Io.” NASA JPL Photojournal. jpl.nasa.gov/images/pia00379
Encyclopedic & scholarly
- “Voyager Golden Record.” Wikipedia. en.wikipedia.org/wiki/Voyager_Golden_Record
- “Contents of the Voyager Golden Record.” Wikipedia. en.wikipedia.org/wiki/Contents_of_the_Voyager_Golden_Record
- “Voyager 1.” Wikipedia. en.wikipedia.org/wiki/Voyager_1
- “Gary Flandro” (the 1964 Grand Tour alignment). Wikipedia. en.wikipedia.org/wiki/Gary_Flandro
- “Linda A. Morabito” (discovery of Io's volcanism, March 9, 1979). Wikipedia. en.wikipedia.org/wiki/Linda_A._Morabito
- Linda A. Morabito, “Discovery of Volcanic Activity on Io.” arXiv:1211.2554 (2012). arxiv.org/abs/1211.2554
The Druyan account — primary retellings
- “Carl Sagan and Ann Druyan's Ultimate Mix Tape.” NPR / Radiolab, February 12, 2010. npr.org
- “Voyager, the Love Story.” phys.org, April 2011. phys.org
Quote-attribution forensics
- “All of Bach … But That Would Be Bragging” (Lewis Thomas, 1972/1974 — often misattributed). Quote Investigator, March 12, 2024. quoteinvestigator.com
Longevity & physics
- “Predicting the Golden Records' Distant Future.” Space.com. space.com
- On the uranium-238 “clock” electroplated on the record. IFLScience. iflscience.com
- 2026 mission-status reporting (Voyager 1's one-light-day milestone, November 18, 2026), cross-checked against NASA. Space Daily. spacedaily.com
Rejected during verification: non-authoritative aggregator sites were consulted and discarded in favor of NASA primary reporting, and a conflicting track-count figure was resolved against Wikipedia's dedicated Contents article (27 musical pieces; the higher figure counts a later reissue's splits).
Asset Attributions
Everything presented as the record in this episode — mission imagery, spacecraft photography, and the Golden Record itself — is genuine archival material. Nothing shown as the record is AI-generated.
Archival imagery — public domain
Mission photography and spacecraft imagery are NASA / JPL-Caltech materials — works of the United States federal government, in the public domain under 17 U.S.C. §105 and NASA's media-usage guidelines. Credited on screen where shown; notably PIA00379, “Volcanic Eruptions on Io” (NASA/JPL).
Atmospheric sequences
Interstitial atmosphere shots (drifting starfields, macro record surfaces, abstract space texture) are generated in-studio and are presented as atmosphere only, never as archival record — disclosed on YouTube as synthetic media.
Sound design — CC0 (34 recordings)
The episode's sound library was sourced from Freesound.org under the CC0 public-domain dedication, verified per file against the CC0 license record (28 recordings, plus 6 inherited from our Civilization & Objects library). CC0 waives attribution entirely; the credits below are a courtesy to the recordists.
Courtesy credits — 22 Freesound recordists
9voltplasma, andrewfordham, chungus43A, cookies+policy, craigsmith, CVLTIV8R, deleted_user_2906614, Fission9, freesoundjon01, HaleyReeseCalhoun, knufds, kyles, lollosound, loudernoises, LukaCafuka, MarcusGraham325, qubodup, rubberduck9999, supersnd, wlabarron, xkeril, xperseai — all via freesound.org, all CC0.
Music & narration
The original score was composed and produced in-studio for this episode. Narration is performed by a synthetic voice and disclosed on YouTube.
Copyleft material
No CC-BY or CC-BY-SA licensed material is used in this episode (verified at the legal gate; every third-party asset above is public domain or CC0).