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What happens if you drop an anti-apple? In a paper published today in @Nature, the ALPHA collaboration at CERN’s Antimatter Factory shows that, within the precision of their experiment, atoms of antihydrogen – a positron orbiting an antiproton – fall to Earth in the same way as their matter equivalents. This result is a milestone in the study of the properties and behaviour of antimatter. Find out more: t.co/C7DYs02nln