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.

32 points

Ok so black holes are just teleporters to other dimensions right?!

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35 points

It’s a one way teleporter to a single dimension, because you’re entire mass will be a single imperceptible point.

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3 points

Kind of like the lump that forms in my chest when I get a phone call

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1 point

I equate it to a can of spray cheese. Small hole, puffy cheese.

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4 points

I thought you were making this up, but apparently there actually is “cheese” that comes in a spray bottle.

What the wiki article does not explain, is why.

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12 points

But it’s not a single point though, because blackholes with a different mass have different sizes, so it’s more like a “maximum density” that can exist in this universe…

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9 points

It’s an oversimplification, but something with the mass of say, a human, will be crushed into a very very very very tiny space. A much smaller space than 0.1mm radius, which would hold Earth’s moon’s mass of 7.342×10^22 kg.

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2 points

As far as i know the Mass of the black Hole is concentrated in the Center (singularity). But it is surouded by its schwarzschild Radius. Anything that enters it cant escape.

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3 points

Size and density have non-standard definitions in this context.

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0 points

Time slows down as the mass approaches the center, so it just can never reach it. It’s stuck in time dilation approaching infinity.

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10 points

That’s what the current understanding of physics says. But given that there are singularities that come out of the math, all that really means is we don’t actually know what happens inside a black hole.

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7 points

It’ll teleport you from the third dimension to the first dimension.

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1 point

Like whole stars or?

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32 points

No indication that any of the returning matter ever made it beyond the event horizon but how wild would it be if matter can come back from that somehow, would shatter current understand of the phenom.

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1 point
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1 point

It would be amazing if that happened! We desperately need to be proven wrong somewhere if we want to develop a theory of quantum gravity.

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10 points

What if we’re currently travelling through one right now and we forgot to turn the oven off

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4 points

Galactic indigestion

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