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    "story_id": "mp-2026-11-08-003",
    "source_story_id": "tmp-story-bear-exoplanet-retrieval",
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    "headline": "Millions of Atmospheres Move Through the GPU",
    "slug": "millions-of-atmospheres-move-through-the-gpu",
    "dek": "BeAR joins high- and low-resolution exoplanet spectra in one retrieval while exposing uncertainty that injection tests say is too narrow.",
    "summary": "BeAR joins high- and low-resolution exoplanet spectra in one retrieval while exposing uncertainty that injection tests say is too narrow.",
    "body_text": "The Bern Atmospheric Retrieval code runs its forward model and likelihood entirely on GPUs and combines high- and low-resolution spectra from the same atmospheric model. On a GH200, the authors report about one millisecond per forward model; an IGRINS retrieval with 17 free parameters took 27 to 42 minutes on one RTX 5080 or about 14 minutes on eight RTX 4090s. Separate and joint retrievals of WASP-77Ab reproduced published abundance and thermal results within the stated comparisons. Injection-recovery tests also found abundance-ratio posteriors underestimated uncertainty by about a factor of two, an important limitation alongside the speed.",
    "why_it_matters": "BeAR joins high- and low-resolution exoplanet spectra in one retrieval while exposing uncertainty that injection tests say is too narrow.",
    "limitations": [],
    "importance": 9,
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    "first_published_at": "2026-11-08T09:00:00.000-05:00",
    "modified_at": "2026-11-08T09:00:00.000-05:00",
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        "text": "BeAR joins high- and low-resolution exoplanet spectra in one retrieval while exposing uncertainty that injection tests say is too narrow.",
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    "tags": [
      "exoplanets",
      "atmospheric retrieval",
      "GPU computing"
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  "sources": [
    {
      "source_id": "source-2026-11-08-003",
      "title": "arXiv preprint 2611.08489, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2611.08489v1",
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      "published_at": "2026-11-05T13:59:48.000-05:00",
      "accessed_at": "2026-11-08T08:27:17.257-05:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "Millions of Atmospheres Move Through the GPU",
    "publisher": "The Machine Press",
    "published_at": "2026-11-08T09:00:00.000-05:00",
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