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The twin child of the Big Bang

In the first moments of the universe, matter overpowered antimatter, its mirror opposite. We may soon find out why.

By Frank Close   October 2012

All cultures have wondered about their origins. Modern physics posits that space and time were born in the Big Bang, some 13.6bn years ago. Science gives no definite answer for why that event occurred, but observations with powerful telescopes and experiments at places like Cern, the particle physics laboratory near Geneva, give us a good understanding of what happened next. We know that matter is, in effect, the result of energy being converted into substantial forms. We know how the energy in the heat of the Big Bang created the basic…

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