Understanding the universe's building blocks, the Standard Model categorizes particles and explains forces, yet leaves questions about gravity and dark matter.

What do quarks, electrons, and photons have in common? They’re all part of the Standard Model - the theory that helped ...

In the late 1960s and 1970s, researchers unified these discoveries into a single theoretical framework now known as the Standard Model of particle physics. This theory classifies all known elementary ...

It's often said in science that extraordinary claims require extraordinary evidence. Recent measurements of the mass of the elementary particle known as the W boson provide a useful case study as to ...

Superheavy charged gravitinos may be the long-sought answer to dark matter. Dark Matter remains one of the biggest mysteries ...

Physicists are eyeing charged gravitinos—ultra-heavy, stable particles from supergravity theory—as possible Dark Matter ...

Some of these tiny elementary particles are among the most important particles in the universe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Particles known as tensor mesons are created when high-energy photons interact. These mesons have now been proposed to have a larger effect on photon behavior than previously thought, and provide a ...