Astronomers led by Indranil Banik analyzed 155,600 subgiants from the LAMOST and Gaia catalogs. Bayesian age reconstruction revealed the oldest star at 13.73 billion years. Adding 0.2 billion years for the formation of the first stars gives a Universe age of about 13.93 billion years—a perfect match
arXiv:2607.00764v1 · 2026-07-01