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Experiments Ring the ‘Death Knell’ for Sterile Neutrinos
Decades of weird experimental results appeared to support the existence of the sterile neutrino, a hypothetical particle that would solve multiple mysteries. But recent experiments have killed hope of finding these phantoms, leaving physicists to wonder what might explain their anomalies.
A Through-The-Lens Look at the World’s Particle Physics Labs
The winning entries in the 2025 Global Physics Photowalk contest showcase the beauty of toil and discovery.
In Expanding de Sitter Space, Quantum Mechanics Gets Even More Elusive
The basic shape that best describes our expanding universe is also the hardest shape for physicists to understand.
Are Strings Still Our Best Hope for a Theory of Everything?
Columnist Natalie Wolchover examines the latest developments in the “forever war” over whether string theory can describe the world.
Quantum Cryptography Pioneers Win Turing Award
Charles Bennett and Gilles Brassard were recognized for their foundational work in quantum information science.
Why Do Humanoid Robots Still Struggle With the Small Stuff?
The last decade has seen vast improvements in humanoid robots, but graduating to widespread use might require going back to the fundamentals.
Where Some See Strings, She Sees a Space-Time Made of Fractals
Pushed down to a certain scale, the laws of physics seem to fall apart. Astrid Eichhorn, a leader in an area of study called asymptotic safety, thinks we just need to push a little further.
What Crystals Older Than the Sun Reveal About the Start of the Solar System
Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.
A New Complexity Theory for the Quantum Age
Henry Yuen is developing a new mathematical language to describe problems whose inputs and outputs aren’t ordinary numbers.