Episode 1.3 · 26 min

Dark Matter

Rotation curves, gravitational lensing, galaxy clusters, and the cosmic web reveal the effects of dark matter, while its identity remains unknown.

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Visual credits

23 sources

Visual sources include third-party material incorporated into custom animations. License information is reproduced from source records; an unrecorded license does not mean a work is public domain.

  • bullet lg image

    Harvard

  • noirlab2512b image

    Noirlab

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • millennium_zoom_1920x1080

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Best Map Ever of the Universe

    ESA and the Planck Collaboration

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Zwicky, Fritz (1898-1974)

    Unbekannt

  • Paper front page

    Harvard

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Shedding Bent Light on Dark Matter

    NASA/JPL-Caltech/ESA/Institute of Astrophysics of Andalusia, University of Basque Country/JHU

  • Webb Data Reveals Dark Matter

    NASA/STScI/J. DePasquale/A. Pagan

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Dark Matter Revealed in Webb, Hubble Observations

    NASA/STScI/A. Pagan

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • LZ Dark Matter on X: "😶‍🌫️ We’ve taken our first steps into the neutrino fog! LZ has just set world leading limits on low mass dark matter AND has observed neutrinos from the sun’s core. ☀️ https://t.co/4oNhpXYEhy" / X

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Physical Review Letters on X: "Using ionization-only signals with the XENONnT platform, scientists perform a blinded search for dark matter particles and set confidence level upper limits on multiple light dark matter models. Learn more: https://t.co/jg4cZvgFfb https://t.co/tZ1bjAhx5t" / X

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • 1804_022_AR_EN

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Image result for query 'Vera C Rubin Observatory official summit facility exterior photo'; source host: noirlab.edu; file: rubin-Abril-2024-N23-CC.jpg.

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • Scientific image

    Creator credit under review

    Incorporated into an explanatory animation; presentation may include cropping, labels and overlays.

  • A Dark Sky Over Sequoia National Park

    D. Duriscoe, C. Duriscoe, R. Pilewski, & L. Pilewski, U.S. NPS Night Sky Program.

Research references

Selected sources from the episode’s research and scientific figures.

  1. Chandra Photo Album, 30 June 2025 ↗
  2. PDG 2025 Dark Matter review ↗
  3. NASA LAMBDA cosmological evolution ↗
  4. MPA MUSE filament release ↗
  5. ESO media lead ↗
  6. Millennium visualizations ↗
  7. McAlpine et al. ↗
  8. Uchuu DR1 ↗
  9. Fermilab/DESI release ↗
  10. Bertone & Hooper history ↗
  11. rubin ford 1970 ↗
  12. SPARC database ↗
  13. Begeman 1989 bibliographic record ↗
  14. National Air and Space Museum object page ↗
  15. Wikimedia Commons ↗
  16. 10 iconic photographs ↗
  17. Clowe et al., “A Direct Empirical Proof of the Existence of Dark Matter” ↗
  18. Cha et al. 2025 ↗
  19. Cho et al. ↗
  20. arXiv:2601.22245 ↗
  21. Planck 2018 VI ↗
  22. A&A version ↗
  23. PDG 2025 BBN review ↗
  24. Planck Legacy Archive spectrum page ↗
  25. 2026 review ↗
  26. Chae 2024 ↗
  27. Hernandez 2025 response ↗
  28. Cookson et al. 2026 ↗
  29. LZ preprint ↗
  30. Berkeley Lab release, 8 Dec 2025 ↗
  31. Accepted PRL paper ↗
  32. arXiv:2601.11296 ↗
  33. XLZD institutional overview ↗
  34. ESA Gaia archive ↗
  35. ESA 2026 highlights ↗
  36. Nature 563, 85 ↗
  37. ESA “Galactic ghosts” ↗
  38. MNRAS stellar-mass analysis ↗
  39. ApJL 986 L21 ↗
  40. arXiv:2606.04462 ↗
  41. Gaia all-sky Milky Way ↗
  42. Fly between Gaia stars ↗
  43. Gaia poster/data visualizations ↗
  44. https://www.eso.org/public/images/eso1908e/): ↗
  45. https://www.esa.int/ESA_Multimedia/Videos/2018/04/Fly_between_Gaia_stars/%28lang%29/en): ↗
  46. https://www.cosmos.esa.int/web/gaia/posters): ↗
  47. Berkeley Lab/DESI, 19 March 2025 ↗
  48. DESI DR2 paper guide ↗
  49. Rubin announcement ↗
  50. The rotation curve and mass distribution of M31 ↗
  51. How dark matter came to matter ↗
  52. zwicky 1933 original ↗

Music

  • Meditation From The Star Orion
    OctahedronMusic · Envato Elements

How this film was made

Created and editorially directed by Anders Lunde using a custom production system developed over six months. AI assists research, drafting, programming, and visual production; I review and edit the material and make the final editorial decisions. Narration uses text-to-speech. Visuals combine custom-built scientific animations, AI-generated reconstructions, and credited scientific imagery.

Generated reconstructions illustrate scientific interpretations. They are distinct from photographs, specimens, and measured data.

More about the creator and production →