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Physics
From particles to cosmology—laws of nature, matter, energy, and motion.
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Latest in Physics
Known physics suggests the early universe should have produced matter and antimatter in equal amounts. Nearly all of it annihilated into radiation, but roughly one extra matter particle survived for every billion pairs—and why that tiny imbalance existed remains one of physics’ deepest unsolved problems.
3+ hour, 19+ min ago (906+ words) The measured net baryon-to-photon ratio is about 6.1 parts in ten billion. Physics can describe the required ingredients for that excess, but no confirmed mechanism made it....
A New Catalog of Close to 3,000 Supernova Challenges Theories on Dark Energy
3+ hour, 56+ min ago (88+ words) The most comprehensive catalogue of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the mysterious force driving the universe’s accelerating expansion....
Privacy-First Quantum Ensembles Learn From Labels No One Can See
49+ min ago (709+ words) Quantum machine learning has long promised a new kind of computational power, but a quieter revolution is now underway at the intersection of quantum algorithms and data privacy....
Physicists Transfer Twisted Microwave Signals Into Light With Striking
49+ min ago (649+ words) Every quantum network ever proposed faces the same awkward problem: the superconducting circuits that store and process quantum information speak in microwaves, while the optical fibers that carry signals across cities and continents speak in light....
Electron-Deficient Bonds Drive Staged Magnetic Shifts in Vanadium Material
49+ min ago (599+ words) Chemical bonds are usually treated as the fixed scaffolding of a material, the framework that determines how atoms sit relative to one another and how electrons move through the resulting structure. Yet in certain classes of matter, the bonds between…...
The Universe Changed Its Mind About Expansion
1+ hour, 10+ min ago (29+ words) For billions of years, expansion slowed. Then something changed. About six billion years ago, the Universe crossed a strange cosmic threshold. Nothing …...
A Century-Old Physics Effect Just Got a New Dimension
7+ hour, 17+ min ago (417+ words) Physicists have uncovered an in-plane Hall response that overturns a century-old assumption about how this famous electrical effect works. The discovery could eventually make multidirectional magnetic sensing possible with one tiny device....
Scientists Detect a Mysterious Signal That Could Be Dark Matter
15+ hour, 27+ min ago (509+ words) A mysterious signal deep underground may offer LUX-ZEPLIN its most intriguing clue to dark matter yet. For nearly a century, scientists have been trying to identify dark matter, the mysterious material believed to account for about 85% of all matter in…...
Atomic Swap in Two-Dimensional Nitrides Unlocks Five New Water-Splitting
4+ hour, 21+ min ago (506+ words) A single-atom substitution could transform one of the most exciting families of two-dimensional materials from a laboratory curiosity into a working engine for solar fuels....