Antimatter looks just like matter – which is a big problem for physics

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Maximilien Brice/CERN

PHYSICISTS have made a key measurement of anti-atoms, and found that they look just like atoms.

The result means we are no closer to solving the mystery of why we live in a universe made only of matter, or why there is anything at all.

Antimatter particles are the same as matter particles, but have the opposite electrical charge. If the two meet, they annihilate in a blitz of light and energy.

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The problem is that the standard model, physicists’ well-tested theory of particles and their interactions, predicts …

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