Author(s): Charles Day

A new experiment elucidates the ability of some particle–fluid mixtures to behave in ways that depend on their previous flow.

[Physics 19, s83] Published Tue Jun 23, 2026

Author(s): Eric Perlmutter

Using a “bootstrap” approach, researchers show that a small set of assumptions may naturally lead to a string-theory description of certain high-energy processes.

[Physics 19, 88] Published Mon Jun 22, 2026

Author(s): Fatemeh Moradi-Kalarde and Marc-Olivier Renou

By exploiting a physically motivated principle, rather than a mathematical postulate, researchers offer a new perspective on how a real-valued quantum theory can be constructed.

[Physics 19, 85] Published Thu Jun 18, 2026

Author(s): Ryan Wilkinson

Improved measurements of an electronic transition in helium-4 atoms constrain the size difference between helium-4 and helium-3 nuclei.

[Physics 19, s80] Published Thu Jun 18, 2026

Author(s): Sophia Chen

As concerns about climate change grow, researchers from fields ranging from gravitational-wave astronomy to condensed-matter physics are finding unexpected opportunities to contribute to climate research.

[Physics 19, 86] Published Wed Jun 17, 2026

Author(s): Marric Stephens

A new device that generates single photons with more consistent wavelengths than existing methods could improve quantum communications.

[Physics 19, s78] Published Wed Jun 17, 2026

Author(s): Ryan Wilkinson

An exotic meson’s photon-emitting decay opens a window into the particle’s long-debated structure.

[Physics 19, s77] Published Tue Jun 16, 2026

Author(s): Gal Shavit

A new experiment probes the quantum geometry of electronic wave functions involved in a nonlinear Hall response.

[Physics 19, 83] Published Mon Jun 15, 2026

Author(s): Mark Buchanan

Researchers boosted the sensitivity for measurements of the motion of a levitated nanoparticle, with potential uses in dark matter searches.

[Physics 19, 84] Published Fri Jun 12, 2026

Author(s): Michael Schirber

A disagreement over neutrino-mass estimates might be resolved by assuming that neutrinos decay into hypothetical massless particles.

[Physics 19, s72] Published Thu Jun 11, 2026

Author(s): Sophia Chen

Researchers have used laser cooling and trapping to isolate calcium monohydride, a key step toward producing ultracold atomic hydrogen.

[Physics 19, s71] Published Wed Jun 10, 2026

Author(s): Ryan Wilkinson

Atomic-scale measurements show that vibrational excitations can cause electrons to move in bunches.

[Physics 19, s75] Published Wed Jun 10, 2026

Author(s): Matteo Rini

Astronomers may have found a long-sought wind from Sagittarius A*, offering a glimpse into how typical supermassive black holes shape their environment.

[Physics 19, 82] Published Tue Jun 09, 2026

Author(s): Charles Day

Machine learning can reduce the number of time steps needed to accurately predict the progress of a dynamically evolving system.

[Physics 19, s74] Published Tue Jun 09, 2026

Author(s): Sam Jarman

Researchers use a quantum Bell test to generate certifiably random numbers, key ingredients for secure network communications.

[Physics 19, 81] Published Mon Jun 08, 2026

Author(s): Mark Buchanan

Sound wave scattering can be increased in one frequency range only by reducing scattering in another range, according to experiments—a discovery relevant for acoustic engineering.

[Physics 19, 80] Published Fri Jun 05, 2026

Author(s): Ryan Wilkinson

Experiments show how so-called natural killer cells adjust their dynamics depending on whether they face cancerous or healthy cells.

[Physics 19, s69] Published Thu Jun 04, 2026

Author(s): Matteo Rini

A 100-fold improvement in a key antihydrogen measurement strengthens tests of matter–antimatter symmetry, entering a regime sensitive to the antiproton’s internal structure.

[Physics 19, 79] Published Wed Jun 03, 2026

Author(s): Rachel Berkowitz

Size-dependent electrostatic barriers place an upper limit on droplet merging efficiency.

[Physics 19, s70] Published Wed Jun 03, 2026

Author(s): Marric Stephens

A new experiment shows that spin-polarized currents conducted by helical organic molecules are not just a measurement artifact, as some researchers suspected.

[Physics 19, s73] Published Tue Jun 02, 2026