A colossal disk-shaped galaxy, nicknamed the “Big Wheel,” challenges current theories of galaxy formation by existing just two billion years after the Big Bang.
The galaxy, comparable in size to the Milky Way today, suggests that galaxies might have formed and grown faster in the early universe than previously thought.
The Big Wheel, spanning nearly 98,000 light-years across, defies the assumption that galaxies of such scale required most of the universe's age to reach their dimensions.
Analysis by researchers from the University of Milano-Bicocca using JWST and other telescopes confirmed the presence of this early giant galaxy.
The Big Wheel's unique spiral arms and young star clusters observed indicate rapid expansion around 11–12 billion light-years away.
Questioning current cosmological models, the early existence of such a massive disk galaxy prompts theories on its fast formation and potential environmental influences.
Difficulties in explaining the Big Wheel's presence early in the cosmos raise challenges for existing galaxy formation theories.
Future studies aim to locate more massive disks in the early universe to discern patterns and potentially revise understandings of galaxy evolution.
The Big Wheel's discovery could reshape scientific views on massive galaxy formation, offering insights into early universe dynamics.
Comparative analysis highlights the Big Wheel Galaxy's size, structure, and unique features when juxtaposed with well-known galaxies like the Milky Way and M87.