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Al Jazeera
Al Jazeera
Science
Colin Baker

Gravity test: Antimatter falls down, but where did it all go?

An artist's conceptual rendering of antihydrogen atoms falling out the bottom of the magnetic trap of the ALPHA-g apparatus, a tall cylindrical vacuum chamber used at CERN to test how antimatter reacts to gravity [Keyi 'Onyx' Li/US National Science Foundation via Reuters]

One of the great mysteries of physics has been solved: How does antimatter … fall?

It’s not a question that keeps most people awake at night, but some physicists have been waiting for its answer for years.

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