Quantum weirdness proved real in first loophole-free experiment A century-long debate about whether quantum mechanics described reality or masked a deeper layer, as Einstein suggested, has concluded – quantum reality won 51¶¯Âþ
TechnologyQuark ages: How these particles are the key to new physics Busting open protons to get to the stuff inside could tell us how matter gets its mass, why we're all here – and maybe even how to make a real lightsaber Features