Galileo Satellites Prove Einstein’s Theory of Relativity to Highest Accuracy Yet

Galileos measure Einsteinian time dilation. (Credit: ESA-P. Carril/Wikimedia Commons/G. Porter)

PARIS (ESA PR) — Europe’s Galileo satellite navigation system – already serving users globally – has now provided a historic service to the physics community worldwide, enabling the most accurate measurement ever made of how shifts in gravity alter the passing of time, a key element of Einstein’s Theory of General Relativity.

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