Astronomers report detection of variability in an extremely distant quasar, described across multiple outlets as the earliest “flickering” quasar yet observed. The finding comes from measurements that capture the quasar changing brightness over time, along with observational indicators consistent with an accretion disk around a rapidly growing supermassive black hole. Several reports frame the result as evidence that key stages of black hole formation and accretion are already underway when the universe is very young—referred to as “cosmic dawn,” roughly within the first billion years after the Big Bang. One outlet also describes the object as showing a transition from more chaotic activity to a more stable or “calm” phase at about 850 million years after the Big Bang, based on how its emission varies. While the sources emphasize that the observations represent record-breaking early timing, they also point to broader implications: the variability and disk-like signatures may help researchers understand how supermassive black holes assemble so quickly and how their feeding behavior evolves in the early universe. The reports cite recent publication(s) in Nature and related scientific analysis.