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  "path": "/science/one-of-the-great-unresolved-embarrassments-of-physics-its-been-340-years-since-newton-and-scientists-still-havent-solved-the-secret-of-gravity",
  "publishedAt": "2026-05-27T12:10:43.000Z",
  "site": "https://www.space.com",
  "tags": [
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  "textContent": "Big G is the oldest fundamental constant in physics and remains the least clearly defined. One scientist has spent a decade attempting to crack the mystery of the gravitational constant, and it all came down to the opening of a single envelope.",
  "title": "'One of the great unresolved embarrassments of physics': It's been 340 years since Newton and scientists still haven't solved the secret of gravity"
}