this post was submitted on 28 Sep 2023
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Scientists confirm that the first black hole ever imaged is actually spinning::The first black hole humanity has ever imaged has also provided us with what researchers are calling "unequivocal evidence" that black holes spin.

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[–] [email protected] 60 points 1 year ago* (last edited 1 year ago) (19 children)

The title kind of misses the point: of course it spins; it would be remarkable if it didn’t.

The really interesting bit is how relativistic frame dragging is causing its spin axis to precess.

(Also, the illustration conflicts with the description: it shows the whole accretion disk wobbling instead of just the jets.)

[–] [email protected] 5 points 1 year ago (16 children)

Does the black hole spin? Or does the stuff outside the black hole spin? 🤔

[–] [email protected] 1 points 1 year ago (1 children)

It's in space and everything is relative, how do we know *everything else" isn't just spinning around the black hole? 🤔

[–] [email protected] 0 points 1 year ago

Because that would require a centripetal force on everything else, which obviously isn't the case.

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