Paper: https://www.aanda.org/articles/aa/full_html/2026/04/aa58144-...
First sentence in the article: "Astronomers have located the edge of the Milky Way’s star-forming disk for the first time"
Wouldn't you expect someone from a publication called "Sky & Telescope" to know that these two are different things?!
Also, in diagrams showing our galaxy, I would greatly appreciate a "you are here" marker which points out the location of our solar system...
> Disk galaxies like the Milky Way form stars “inside-out” — starting from the center and working outwards through the disk. So, as a general rule, the farther out astronomers look, the younger the stars are.
Do they meant looking out from Earth (which is actually nearer to the center of a spiral arm than to either end) or out from the galactic bulge. Either way doesn't make sense.