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 Autonoma de ...

In a recent experiment, scientists analyzed gamma rays – the most energetic form of light – emitted from distant astronomical events. These rays, produced in cataclysmic explosions billions of light-years …

As detectors improve, scientists may finally learn whether light always moves at one constant speed or whether the universe still hides a deeper layer of physics.

Their results *show no violation* of Einstein’s rule, but they significantly tighten the constraints on where new physics could be hiding.

Nov 20, 2025 · Enter a team of physicists led by Mercè Guerrero and Anna Campoy-Ordaz, researchers from the University of Barcelona (UAB). Along with their collaborators, they took an astrophysical …

The controversy began in 1927 amid the proceedings of the fifth annual Solvay Conference in Brussels. In attendance were Albert Einstein and Niels Bohr—a pair of scientists whose names remain …

May 16, 2025 · Physicists have puzzled over how long the hop through the barrier actually takes. Some experiments hinted that the leap happens so swiftly that it appears faster than light, brushing against …