A pair of top quarks has been detected in the detritus spraying forth from the collision of two atoms of lead. This means that we're a step closer to taking new measurements of this primordial soup, ...

Have you heard of quark? No, I'm not talking about the physics term-quark is the hottest new dairy product to hit the food scene. But...is it yogurt? Is it cheese? Is it something better? Quark is ...