Add Yahoo as a preferred source to see more of our stories on Google. If the word “quark” sparks memories of physics class, rest easy: a) I'm not qualified to write about physics; and b) that’s not ...

Protons and neutrons—the building blocks of matter—belong to a huge class of particles called hadrons. Hadrons are composite ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Have you heard of quark? No, I'm not talking about the physics term—quark is ...

A quark is an elementary subatomic particle; three of them make up a proton or a neutron. Some scientists base the suggested existence of quark stars (which would be made of quarks instead of complete ...