Discovery and Characteristics
Astronomers using the (JWST) have observed the inside-out growth of a galaxy, named JADES-GS+53.18343−27.79097, just 700 million years after the , challenging previous understandings of galactic formation.
This galaxy, significantly smaller than the , features a dense core of stars and rapidly forming outer regions, indicating a unique growth pattern that contrasts with the Milky Way's gradual formation.
Implications and Future Research
The findings suggest that early galaxies may have evolved through mechanisms not yet fully understood, potentially including gas accretion and mergers, opening new questions in astrophysics.
Researchers plan to study more galaxies from the same era to determine if the inside-out growth pattern observed in JADES-GS+53.18343−27.79097 was common, aiming to reconstruct the growth cycles of galaxies over cosmic time.