this post was submitted on 16 Jan 2025
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[–] g0d0fm15ch13f@lemmy.world 11 points 2 days ago (1 children)
[–] Honse@lemmy.dbzer0.com 8 points 1 day ago (3 children)

Technically any object of sufficient size would colapse under its own immense gravity and form a black hole

[–] CrayonRosary@lemmy.world 3 points 1 day ago (1 children)

Isn't the universe a sufficiently large size? Why is it expanding then? What constitutes an "object"?

[–] PoastRotato@lemmy.world 4 points 1 day ago (1 children)

Most of the universe is empty space, and that's what's expanding. Empty space doesn't have any gravitational pull

[–] CrayonRosary@lemmy.world 1 points 1 day ago

Solid objects are 99.999999% empty space, too.

[–] smeg 4 points 1 day ago

And technically once it has collapsed it isn't very big anymore!

[–] loaExMachina@sh.itjust.works 4 points 1 day ago (1 children)

The universe is the biggest object there is and it's not collapsing tho...

[–] Honse@lemmy.dbzer0.com 5 points 1 day ago (3 children)

The universe is not one gigantic solid object

[–] loaExMachina@sh.itjust.works 3 points 1 day ago

Many things we consider objects are mostly not solid, like stars made of Gaz and plasma... And the'res also gaz in the interstellar medium, albeit at very low density. So you still gotta make a hypothesis involving density to determine what will or won't collapse.

I mean I'm mostly liquid and I bet so is the dog