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  "path": "/article/the-universe-could-have-18-possible-shapes/",
  "publishedAt": "2026-05-23T12:00:00.000Z",
  "site": "https://www.scientificamerican.com",
  "textContent": "Our universe appears flat—but this observation still leaves plenty of options for its true shape. In fact, our cosmos could resemble a donut",
  "title": "The universe could have 18 possible shapes"
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