Well this seems very cool! Will have to sniff around and see if this report has it right, and then if it'll turn out they just misplaced a digit somewhere or equivalent. But woot!
Astronomers Detect 6 Massive Galaxies So Old They Can't Be Explained by Science
https://www.sciencealert.com/astronomers-detect-6-massive-galaxies-so-old-they-cant-be-explained-by-science