An article published in the journal “Nature” reports a study on the galaxy nicknamed Wolfe Disk that shows that it formed very early, to the point that it already had the shape of a disk galaxy about 1.5 billion years after the Big Bang. A team of researchers used the ALMA radio telescope to study this galaxy and find evidence of its characteristics that make it the oldest with a rotating disk found so far. Its existence so early in the history of the universe poses a problem for the current galactic formation models.