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  "publishedAt": "2026-02-13T14:45:08.000Z",
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  "textContent": "Get the world’s most fascinating discoveries delivered straight to your inbox. You are now subscribed Your newsletter sign-up was successful Want to add more newsletters? Delivered Daily Daily Newsletter Sign up for the latest discoveries, groundbreaking research and fascinating breakthroughs that…",
  "title": "Record-breaking gravitational wave puts Einstein's relativity to its toughest test yet — and proves him right again"
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