Astronomy
NASA-linked study suggests a possible “fifth force” within the solar system
For decades, the four known forces of nature, gravity, electromagnetism, and the strong and weak nuclear forces, have accounted for every interaction physicists can measure in a laboratory or a spacecraft trajectory. But a study by Slava G. Turyshev, a physicist at NASA’s Jet Propulsion Laboratory, argues that a long-range interaction beyond those four, sometimes […]
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