In the strange world of quantum mechanics, objects can exist in several states at once. This concept, called superposition, is one of the most puzzling features of quantum theory. A particle, for ...

String theory would then be the ultimate realization of the Platonic ideal of a fully explicable cosmos. In the past few years, however, physicists have discovered that string theory predicts not a ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Science’s best guess at how the universe came into being includes the Big Bang ...