Scientists pushed photons across the universe to test the speed of light—and found Einstein’s cosmic speed limit still holds ...

A newly proposed cosmic speed limit may constrain how fast anything in the universe can grow. Its existence follows from Alan Turing’s pioneering work on theoretical computer science, which opens the ...

A fundamental rule of nature is that nothing travels faster than the speed of light. Now, physicists working in Europe say they may have... New Data Put Cosmic Speed Limit To The Test A fundamental ...

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GENEVA - One of the pillars of physics and Einstein's theory of relativity - that nothing can go faster than light - was rocked Thursday by new findings from one of the world's foremost laboratories.