Physicists don’t know where most of the universe’s apparent mass has gone, and attempts to find it have so far failed. But a proposed particle born out of the universe’s chaotic first moments may ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The search narrows for a mysterious form of matter predicted from Einstein's theory of special ...

A phase change in the early universe and particles called HYPERs could make dark matter detectable in future experiments. When you purchase through links on our site, we may earn an affiliate ...

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 ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Every second, 100 trillion phantasmic little particles called ...

UC Santa Cruz physicist Stefano Profumo has put forward two imaginative but scientifically grounded theories that may help solve one of the biggest mysteries in physics: the origin of dark matter. In ...

Pearl Sandick is an assistant professor of physics at the University of Utah, where she teaches a graduate course in general relativity. Her research interests include dark matter and supersymmetry.