How Many Holes Does the Universe Have? (www.scientificamerican.com)
from fossilesque@mander.xyz to astronomy@mander.xyz on 01 Jun 11:51
https://mander.xyz/post/13682448

#astronomy

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Haagel@lemmings.world on 01 Jun 12:24 next collapse

Kinky

Diplomjodler3@lemmy.world on 01 Jun 17:06 collapse

Can’t wait for the role 34 content.

Reverendender@sh.itjust.works on 01 Jun 12:35 next collapse

I found several of the ideas in this article lacked sufficient explanation, if there even was any, for laypeople to understand.

maculata@aussie.zone on 01 Jun 16:00 next collapse

A thousand holes in Blackburn, Lancashire.

Shdwdrgn@mander.xyz on 01 Jun 16:53 collapse

I thought the torus shape was the accepted theory? Guess I haven’t been keeping up on this.

Near the bottom of the article they mention that if the universe wasn’t flat, we would see multiple copies of the universe in the sky. I’m not sure that is exactly true? Given the speed at which the universe is expanding, especially during the early period after the big bang, it seems reasonable that the light from most stars wouldn’t have had a chance to loop back around yet. Even the light from the earliest stars is just reaching us, so I don’t know why they think it would have had time to loop back around multiple times, unless there’s something I’m missing?

And nothing in the article really touched on the “holes” mentioned in the title. Are they referring to the center of a torus, which isn’t really a hole that we could observe? I don’t get it.