The figures illustrate the revealed sequential disk formation in this study: thick disk only galaxies dominate the early epochs (bottom panel), while galaxies exhibiting both thin and thick disks ...

Disk galaxies, like our own Milky Way galaxy, commonly consist of both a thick and thin disk of stars—each with different features, including stellar population and movement. Three major theoretical ...

The James Webb Space Telescope has upended expectations again, revealing a massive spiral galaxy in the universe’s infancy that looks strikingly like a young Milky Way. Instead of a chaotic, ...