Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say
Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say

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Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say

Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say
Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say
Relative to what exactly?
Probably relative to the CMB (the frame of reference where there is no redshift or blueshift bias in any direction).
Thank you! At that scale the simpler answers just don’t feel sufficient
At that speed, relative to most nearby large object
But what if all nearby objects are moving towards it at a similar speed? Or away? At such a large scale speed becomes a mind bending thing.
Relative to their point of origin.