2 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 …

In practice, that means the experimenters could rule out the kind of bookkeeping Einstein hoped would save a more classical picture of light.

Description LightSpeedValidator is a scientific computing library designed to analyze high-energy astrophysical data from distant cosmic sources. Inspired by recent experiments testing …

3 days ago · Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still daring to test it. Some theories of quantum gravity suggest …

1 day 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 …

It led Albert Einstein to propose that the speed of light is constant, a cornerstone idea behind his theory of special relativity. Special relativity rests on the principle that the laws of physics …

Dec 31, 2025 · Scientists in China have performed an experiment first proposed by Albert Einstein almost a century ago when he sought to disprove the quantum mechanical principle of …