The constancy of the speed of light is a pillar of modern physics, but questions persist about its absolute universality.

Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought ...

Everyday life on the internet is insecure. Hackers can break into bank accounts or steal digital identities. Driven by AI, attacks are becoming increasingly sophisticated. Quantum cryptography ...

Physicists tested light speed using cosmic gamma-ray bursts. Study confirms Einstein's prediction that all light colors travel at same speed.

A blazar is an extraordinarily bright object with a supermassive black hole at its core. Some of the matter falling into the ...

Physicists using near-absolute-zero detectors have reached unprecedented sensitivity in the hunt for light dark matter. A ...

Dignitaries formally inaugurate the beginning of FLARE operations. From left: Vyacheslav (Slava) Lukin; Hantao Ji, PPPL physicist and FLARE’s principal investigator; Brandon Thorne, director of ...

Nuclear physicists have long been working to reveal how the proton gets its spin. Now, a new method that combines experimental data with state-of-the-art calculations has revealed a more detailed ...