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Black holes keep 'burping up' stars they destroyed years earlier, and astronomers don't know why (www.livescience.com)

submitted 10 months ago by L4s@lemmy.world to c/technology@lemmy.world

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Black holes keep 'burping up' stars they destroyed years earlier, and astronomers don't know why::Years after ripping stars to shreds, 24 black holes suddenly flared up with radio waves in inexplicable 'burping' bouts. Half of all star-killing black holes may experience the same.

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[-] Kolanaki@yiffit.net 5 points 10 months ago

Maybe black holes sometimes momentarily change into white holes? 🤔

[-] fox2263@lemmy.world 1 points 10 months ago

A white hole?

[-] Cascio@lemmy.world 4 points 10 months ago

The Cat: So, what is it?

Kryten: I've never seen one before - no one has - but I'm guessing it's a white hole.

Rimmer: A white hole?

Kryten: Every action has an equal and opposite reaction. A black hole sucks time and matter out of the Universe; a white hole returns it.

Lister: So, that thing's spewing time...

Lister: [donning his fur-lined hat] ... back into the Universe?

Kryten: Precisely. That's why we're experiencing these curious time phenomena on board.

The Cat: So, what is it?

Kryten: I've never seen one before - no one has - but I'm guessing it's a white hole.

Rimmer: A white hole?

Kryten: Every action has an equal and opposite reaction. A black hole sucks time and matter out of the Universe; a white hole returns it.

Lister: [minus the hat] So, that thing's spewing time...

Lister: [donning his fur-lined hat, again] ... back into the Universe?

Kryten: Precisely. That's why we're experiencing these curious time phenomena on board.

Lister: What time phenomena?

Kryten: Like just then, when time repeated itself.

The Cat: So, what is it?

[Kryten, Rimmer, and Lister stare at Cat]

The Cat: Only joking.

-Red Dwarf

[-] fox2263@lemmy.world 2 points 10 months ago

So what is it?

[-] Kolanaki@yiffit.net 3 points 10 months ago* (last edited 10 months ago)

A white hole is a theorized antithesis to a black hole. While a black hole sucks matter in and destroys it, a white hole seemingly creates new matter and sprays it into the universe.

Afaik, we haven't actually observed one before. It's just a mathematical theory. But black holes used to be nothing more than theory, too.

Edit: I haven't seen Red Dwarf in so long, I didn't realize you were referencing it. 🤣

[-] fox2263@lemmy.world 1 points 10 months ago

So that thing is spewing time back in to the universe?

this post was submitted on 05 Sep 2023

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