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Astroparticle physics

Astroparticle physics

Are antimatter stars firing bullets of antihelium at Earth?

02 May 2021
Antistar candidates
Astronomers searched for candidate antimatter stars among nearly 6000 gamma-ray sources. After eliminating known objects and sources that lacked the spectral signature of an antistar, 14 possibles remained. (Courtesy: Simon Dupourqué/IRAP)
Fourteen possible antimatter stars (“antistars”) have been flagged up by astronomers searching f

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Keith Cooper is a science writer based in the UK
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