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  "path": "/article/mars-orbiter-watches-mysterious-wave-of-darkness-spread-across-red-planets-surface/",
  "publishedAt": "2026-04-17T11:00:00.000Z",
  "site": "https://www.scientificamerican.com",
  "textContent": "Observations by the Mars Express orbiter reveal rapid changes on the Red Planet’s surface from windblown volcanic ash",
  "title": "Mars orbiter watches mysterious wave of darkness spread across red planet’s surface"
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