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360 points Eduard | 5 comments | 14 Jul 25 20:06 UTC | HN request time: 0.001s | source

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I wonder what would happen if one black hole shot through another one at high relativistic velocity, instead of spiralling towards one another.

fsmv ◴[14 Jul 25 20:53 UTC] No.44565138[source]▶

They would merge and produce a black hole with the sum of their momentums

Because nothing can ever leave the event horizon black holes are essentially perfectly sticky.

1. fooker ◴[14 Jul 25 21:24 UTC] No.44565519[source]▶

> Because nothing can ever leave the event horizon black holes are essentially perfectly sticky.

If Hawking radiation turns out to be non existent, yes.

Also, we don't know if it's possible to 'crack' open a black hole. If anything, another black hole might be the perfect instrument for doing this.

2. im3w1l ◴[14 Jul 25 21:35 UTC] No.44565628[source]▶

When you say cracking open a black hole do you mean cracking the event horizon to form a naked singularity?

replies(1): >>44566756 #

3. fishsticks89 ◴[14 Jul 25 22:45 UTC] No.44566181[source]▶

Hawking radiation occurs because black holes are sticky ‼

replies(1): >>44566758 #

4. fooker ◴[15 Jul 25 00:35 UTC] No.44566756[source]▶

The answer would likely be worth a Nobel prize or two.

5. fooker ◴[15 Jul 25 00:36 UTC] No.44566758[source]▶

Huh nice analogy

LIGO detects most massive black hole merger to date