Deep in the heart of the matter, some numbers don't add up. For example, while protons and neutrons are made of quarks, nature's fundamental building blocks bound together by gluons, their masses are ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Can a quark star exist? It's an open question in the astronomy community, but there appears to be ...

When a star the size of 20 suns dies, it becomes, in the words of astrophysicist Zaven Arzoumanian, “the most outrageous object that most people have never heard of”—a city-size body of improbable ...

A new particle detector has passed a crucial test that shows it is ready to detect the "ashes" left over from a unique primordial soup that filled the universe immediately after the Big Bang. The ...

Observational first: physicists have used the ATLAS experiment at CERN to observe the production of top-quark and photon pairs. (Courtesy: CERN) For the first time, particle physicists have observed ...

The early Universe was a strange place. The Universe was so dense and hot that atoms and nuclei could not form—they would be ripped apart by high-energy collisions. Even protons and neutrons could not ...