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{
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  "cid": "bafyreieaddpk5b7ztdriwpks4drwvoddiwuolx4gpohsxcbd6vwaardhqy",
  "value": {
    "text": "FWIW, Uranus & Neptune are called Ice Giants, not Gas Giants like Jupiter & Saturn - this graphic from the most recent planetary decadal survey illustrates why  (yeah I know some people don't like \"Ice Giants\" because it's not ice like we have on Earth, but we haven't converged on a better word yet)",
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        {
          "alt": "The image shows cut-aways for the largest four planets in our Solar System: Jupiter and Saturn (often called gas giants), and Uranus and Neptune (often called ice giants to indicate that their internal structure differs significantly from the gas giants). This is Figure 10-1 from the Decadal Survey, and the caption reads: Interiors of Jupiter, Saturn, Uranus, and Neptune (not to scale). Jupiter and Saturn's interiors are characterized by a deep metallic hydrogen region and a phase separation of helium in hydrogen leading to helium rain. Recent investigations indicate that their central dense cores are diluted into the metallic hydrogen envelope. The hydrogen envelopes of Uranus and Neptune are much less extended and overlay a mixture of ices and rocks; it is unknown whether these ices and rocks form distinct layers. SOURCE: Courtesy of R. Helled.",
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            "mimeType": "image/jpeg",
            "size": 428430
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          "aspectRatio": {
            "width": 2000,
            "height": 1094
          }
        }
      ]
    },
    "langs": [
      "en"
    ],
    "reply": {
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    "createdAt": "2025-04-10T17:47:21.254Z"
  }
}