What's up in
What Is Quantum Field Theory and Why Is It Incomplete?
Quantum field theory may be the most successful scientific theory of all time, but there’s reason to think it’s missing something. Steven Strogatz speaks with theoretical physicist David Tong about this enigmatic theory.
Is the Great Neutrino Puzzle Pointing to Multiple Missing Particles?
Years of conflicting neutrino measurements have led physicists to propose a “dark sector” of invisible particles — one that could simultaneously explain dark matter, the puzzling expansion of the universe, and other mysteries.
Cosmic Map of Ultrahigh-Energy Particles Points to Long-Hidden Treasures
Ultrahigh-energy cosmic rays twist and turn on their way to Earth, which has made it nearly impossible to identify the colossal monsters that create them.
Dark Matter Experiment Finds Unexplained Signal
Researchers say there are three possible explanations for the anomalous data. One is mundane. Two would revolutionize physics.
Neutrino Asymmetry Passes Critical Threshold
The first official evidence of a key imbalance between neutrinos and antineutrinos provides one of the best clues for why the universe contains something rather than nothing.
Neutrinos Lead to Unexpected Discovery in Basic Math
Three physicists stumbled across an unexpected relationship between some of the most ubiquitous objects in math.
How the Neutrino’s Tiny Mass Could Help Solve Big Mysteries
The KATRIN experiment is closing in on the mass of the neutrino, which could point to new laws of particle physics and shape theories of cosmology.
Neutrinos Linked With Cosmic Source for the First Time
High-energy neutrinos have been traced back to a flaring supermassive black hole known as a blazar. The long-sought link opens the door to an entirely new way to study the universe.
Evidence Found for a New Fundamental Particle
An experiment at the Fermi National Accelerator Laboratory near Chicago has detected far more electron neutrinos than predicted — a possible harbinger of a revolutionary new elementary particle called the sterile neutrino, though many physicists remain skeptical.