Nuclear Theory2026-06-021 minarXiv:2606.03993expressThe shape of the xenon nucleus is no longer a mysteryAtomic nuclei are not always like billiard balls. Some are elongated, like cigars, others are flattened. But xenon-129 resembles a potato — a bumpy triaxial ellipsoid.Giuliano Giacalone·Govert Nijs·Wilke van der ScheeAlbert EinsteinFred HoyleFritz ZwickykilonovaStandard Model👍👎☆SimplePopularAdvanced