Searches for dark matter particles have come up empty so far, driving theorists to get more creative with their ideas.

The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.

The Standard Model of particles and interactions is remarkably successful for a theory everyone knows is missing big pieces. It accounts for the everyday stuff we know like protons, neutrons, ...

The Large Hadron Collider began smashing atoms together in 2009 and continues to throw up surprising insights into the fundamental building blocks of the universe. It’s via evidence from particle ...

This newly-discovered particle could account for dark matter. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Researchers have discovered a new ...

Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in ...

The original version of this story appeared in Quanta Magazine. When it comes to understanding the fabric of the universe, most of what scientists think exists is consigned to a dark, murky domain.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Every second, 100 trillion phantasmic little particles called ...

Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of "Ask a Spaceman" and "Space Radio," and author of "How to Die in Space." Sutter contributed this article to ...

Scientists at CERN’s Large Hadron Collider (LHC) have for the first time observed a fundamental asymmetry in the behavior of baryons, the particles that form the bulk of all visible matter. The ...