Particle Physics

Several branches of modern physics, including quantum theory and cosmology, suggest our universe may be just one of many

Electron tornadoes that mimic “magnetic monopoles” emerge from specks of rust

Researchers have created ultraheavy versions of elements that have never existed before on Earth

Physicists seek the dividing line between the quantum world and the classical one

Scientists are ramping up production of the isotope actinium 225, which could help treat prostate cancer

A feasibility study on CERN’s Future Circular Collider identifies where and how the machine could be built—but its construction is far from assured

To understand why the universe is made of matter and not antimatter, physicists are looking for a tiny signal in the electron

The Short-Baseline Neutrino Program will try to determine once and for all whether sterile neutrinos are real

A major report plotting the future of U.S. particle physics calls for cuts to the beleaguered DUNE project, advocates a “muon shot” for a next-generation collider and recommends a new survey of the universe’s oldest observable light

Pierre Agostini, Ferenc Krausz, and Anne L’Huillier split the award for their ability to picture nature in a billionth of a billionth of a second

In theory, physicists knew that antimatter should behave just like matter under gravity’s pull. But until now, no one had ever seen it happen

Letters between Lise Meitner and the chemist Otto Hahn reveal how she struggled with Hahn's failure to credit her work and condemn the Nazi atrocities