this post was submitted on 27 Apr 2025
314 points (99.7% liked)

science

18200 readers
562 users here now

A community to post scientific articles, news, and civil discussion.

rule #1: be kind

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 2 points 21 hours ago (1 children)

Ive never heard of black holes suddenly expanding. Everything ive read js that they just very, very, very slowly dissipate through Schwartzchild radiation.

[–] [email protected] 3 points 19 hours ago (1 children)

They expand if they have matter falling into them.

[–] [email protected] 0 points 15 hours ago* (last edited 15 hours ago) (1 children)

What's the "they" that you mean? The event horizon, the transition point where light can't escape?

That doesn't sound like what they were saying. The actual "hole" supposedly remains infinitely small. And the event horizon radius would expand at a pretty slow rate as matter fell into the black hole. Exponentially smaller as it gains mass.

So I'm still trying to understand in what case a black hole ever "expands rapidly".

[–] [email protected] 1 points 5 hours ago (1 children)

Dude, everyone here has said they're not experts. Idk what you're expecting us to say.

[–] [email protected] 0 points 4 hours ago* (last edited 4 hours ago) (1 children)

Dude, I'm expecting the most basic explanation of what someone meant by something they said. Claiming not to be an expert isn't a good response when someone asks wtf you meant

You said

What starts from a very small condensed state, and expands rapidly while spinning in one direction? Black holes.

I'm asking where you got that from, since it's the opposite of anything ive ever heard about black holes and what almost anyone thinks about black holes.

[–] [email protected] 1 points 2 hours ago* (last edited 2 hours ago) (1 children)

Look it up lol I have no idea. I told you im just a layman, same with everyone else.

You're demanding answers on the Internet, a place that holds all of humanities knowledge in your hand. Use it and come back with your findings so we can all learn more.

[–] [email protected] 1 points 16 minutes ago* (last edited 15 minutes ago)

Dude, you made some claim, and I asked where you heard about it so it sounded.like bullshit.

Asking where you heard something is not unreasonable. You're just being a jackass about, I guess, making some shit up and someone asking about it? It's really really weird.

Anyway, I checked, and no, that's not how black holes work.