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  1. Scientists Tried to Break Einstein’s Speed of Light Rule

    4 days ago · Scientists tried to break Einstein’s speed of light rule Einstein’s speed-of-light rule just survived its toughest cosmic stress test yet. Date: January 8, 2026 Source: Universitat …

  2. Gamma Rays from the Cosmos Reinforce Einstein’s Light Speed ...

    A Bold Challenge to Relativity’s Core (Image Credits: Pixabay) Researchers have once again put one of Albert Einstein’s foundational principles to the test, using bursts of high-energy radiation …

  3. Scientists Tried To Break Einstein's Speed of Light Rule ...

    3 days ago · Scientists are putting Einstein's claim that the speed of light is constant to the test. While researchers found no evidence that light's speed changes with energy, this null result …

  4. Could the Speed of Light Actually Change? Scientists Test ...

    Nov 20, 2025 · Michelson and Morley’s inability to measure any variation in the speed of light pointed to a deeper truth: the speed of light is always the same, regardless of motion. It’s this …

  5. New analysis challenges Einstein’s theory on the speed of light

    The speed of light has been one of science’s most trusted markers of stability. For more than a century, the idea that light moves through space at a constant speed has supported some of …

  6. Physicists Test Einstein with Gamma Rays, and Find the Speed ...

    This isn’t the first cosmic litmus test for Einstein. Just months earlier, in November 2025, separate studies using gamma-ray bursts reconfirmed light’s unwavering speed across energies and …

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    • Breaking the speed of light by using quantum tunnels - Earth.com

      May 16, 2025 · Some experiments hinted that the leap happens so swiftly that it appears faster than light, brushing against the limits set by Einstein’s special relativity. Others clocked a small …