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  "path": "/science/astronomy/super-earths-could-protect-life-with-massive-oceans-of-metallic-magma/",
  "publishedAt": "2026-02-25T15:35:31.000Z",
  "site": "https://www.zmescience.com",
  "tags": [
    "Astronomy",
    "News",
    "habitable zone",
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  "textContent": "New research challenges the idea that an iron core is needed for a magnetic field.",
  "title": "Super Earths Could Protect Life With Massive Oceans of Metallic Magma"
}