31/ATLAS

"A team of astronomers has attempted to track the path of interstellar object 3I/ATLAS back into the past, tracing its path through the galaxy in simulations involving over 13 million stars."https://www.iflscience.com/interstellar-object-3iatlas-may-be-a-10-billion-year-old-time-capsule-from-an-earlier-age-of-the-universe-81077