High-Energy Cosmic Ray Sources Get Mapped for the First Time
They twist and turn on their way to Earth, which has made it nearly impossible to identify the colossal monsters that create them.
A ‘Last Hope’ Experiment Finds Evidence for Unknown Particles
Long-awaited news from Fermilab’s Muon g-2 team may resolve a tantalizing conflict between nature and theory. But a separate calculation clouds the picture.
Quantum Mischief Rewrites the Laws of Cause and Effect
Spurred on by experiments that scramble the ordering of causes and their effects, some physicists are figuring out how to abandon causality altogether.
A Decades-Long Quest Reveals New Details of Antimatter
Twenty years ago, physicists began investigating a mysterious asymmetry inside the proton. Their results show how antimatter helps stabilize every atom’s core.
What Dust From Space Tells Us About Ourselves
Micrometeorites fill every corner of our planet. Matthew Genge is using these shards of interplanetary space to understand Earth and its place in the solar system.
How Gödel’s Proof Works
His incompleteness theorems destroyed the search for a mathematical theory of everything. Nearly a century later, we’re still coming to grips with the consequences.
Astronomers Are Uncovering the Magnetic Soul of the Universe
Researchers are discovering that magnetic fields permeate much of the cosmos. If these fields date back to the Big Bang, they could solve a cosmological mystery.
A Super Sensitive Dark Matter Search Yields Strange Results
Researchers say there are three possible explanations for the anomalous data: One is mundane. Two would revolutionize physics.
Black Hole Paradoxes Reveal a Link Between Energy and Entropy
What happens to a black hole as it decays? Investigating the possibilities has led researchers in recent years to major clues about quantum gravity.