I think that one wasn't it. Was probably this one about E8 that I saw and ended up being like, "Wow, I don't know shit about Math." Lol https://www.newscientist.com/article/dn18356-most-beautiful-math-structure-appears-in-lab-for-first-time/
New Scientist 'Most beautiful' math structure appears in lab for first time | New Scientist A complex form of mathematical symmetry linked to string theory has been glimpsed in the real world for the first time