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I heard that by looking farther away we should see older less formed galaxy but that it isn’t the case. Do someone know something about it?
by alfor 4y ago
I heard that by looking farther away we should see older less formed galaxy but that it isn’t the case.
Do someone know something about it?
- aizyuval 4y agoForms of lights and our capture of it creates our “vision”. The longer the distance it took the light to travel from the objects to our telescope, the more time it takes. By the time it is finally captured, we are watching an outdated light! An outdated galaxy. I hope that’s what you meant.
- alfor 4y agoYes, but I heard that they appear similar to the closer one, in opposition to what was expected.
- pkaye 4y agoWhat I heard it now they think galaxies started forming pretty early after the big bang.
- dredmorbius 4y agoThere's also the hypothesis of angular diameter turnaround: that at a sufficient distance, more distant objects would appear larger rather than smaller, because they subsumed a larger fraction of the universe at the time. This has not been observed by JWST so far as I'm aware. Memorialised in an xkcd comic, of course (Explain version linked here): <https://www.explainxkcd.com/wiki/index.php/2622:_Angular_Diameter_Turnaround https://www.explainxkcd.com/wiki/index.php/2622:_Angular_Dia...> See also: <https://threadreaderapp.com/thread/1516548836709343238.html https://threadreaderapp.com/thread/1516548836709343238.html>