Physics
This antimatter version of an atomic nucleus is the heaviest yet
Smashing gold nuclei together at high speeds billions of times has resulted in 16 particles of antihyperhydrogen-4, a very exotic and heavy form of antimatter
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Smashing gold nuclei together at high speeds billions of times has resulted in 16 particles of antihyperhydrogen-4, a very exotic and heavy form of antimatter
Puzzling ancient galaxies and oddly shaped clusters suggest we have glimpsed cosmic strings travelling at the speed of light – and with them clues to a deeper theory of reality