Scientists are on the trail of a mysterious five-particle structure that could challenge one of the biggest theories in physics: string theory. This rare particle—never seen before and predicted not ...

Now, for the very first time, Chinese scientists directly observed it. Uncovering this theory, called the “Migdal effect,” ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

The particle in question, known as a sterile neutrino, was supposed to only interact with gravity and have zero interactions ...

After years of careful investigation, researchers working on the Micro Booster Neutrino Experiment (MicroBooNE) have determined that a ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. A tiny particle that acts like a wave is gaining ground as the ...

Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter ...

The hypothetical faster-than-light particle known as the tachyon may marry with the special theory of relativity, according to a team of physicists, making its existence more plausible. Tachyons are a ...

Always seeking harmony, man sees the universe—for a few brief moments—as a pleasingly simple machine. Then curiosity about the nature of matter gets the better of him. Democritus conceived matter as ...

The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.