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Posted by bookofjoe 7 hours ago

Astronomers find the edge of the Milky Way(skyandtelescope.org)
83 points | 13 comments
layer8 4 hours ago|
Better, adblocker-friendly article (original press release): https://www.um.edu.mt/newspoint/learn/2026/theedgeofthemilky...

Paper: https://www.aanda.org/articles/aa/full_html/2026/04/aa58144-...

dotancohen 4 hours ago||
Is this a non-sequiter or just poorly phrased?

  > 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.
_factor 4 hours ago||
Poorly phrased. The most recent stars are on the edges. The inner stars were first, hence the “working outwards”.
malfist 3 hours ago|||
When does "starting in the center" mean anything besides "starting in the center"?

The earth is not the center of the galaxy

assimpleaspossi 2 hours ago||
He didn't say that. He said earth is nearer to the center of a spiral arm.
ww520 2 hours ago|||
Looking from Earth at the stars closer to the center of a galaxy, they are found to be older. Looking from Earth at the stars closer to the edge of a galaxy, they are found to be younger.
happytoexplain 3 hours ago|||
I actually am not following what the ambiguity is - stars farther out from the center are younger, no?
kadoban 2 hours ago||
The Earth isn't the center of the galaxy, so this feels confusing/confused:

> So, as a general rule, the farther out astronomers look, the younger the stars are.

colechristensen 4 hours ago|||
It is beyond obvious what they mean.
JumpCrisscross 2 hours ago|||
Try: "the farther out [from the center] astronomers look"
layer8 4 hours ago||
[dead]
neals 4 hours ago||
Just the daily post that makes me feel small and insignificant.
dylan604 4 hours ago|
I prefer that feeling much more than the modern sense from social media where everyone is abnormally important
yrcyrc 4 hours ago|
Great. Next Laniakea