Skip Navigation

Astronomy @mander.xyz

teft @startrek.website

1 yr. ago • 97%

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

www.sciencealert.com Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say

Black holes could be right now zooming through the Universe at astonishing speeds just under 10 percent of the speed of light.

Space @beehaw.org Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say

Space @lemmy.world Zooming Black Holes Can Reach ~10% The Speed of Light, Scientists Say

13 comments

What would cause them to move so quickly?

4
- Colliding with another black hole.
  
  6
- Multibody Black Hole Slingshot
  
  4
- Light up shoes
  
  3
Relative to what exactly?

4
- Probably relative to the CMB (the frame of reference where there is no redshift or blueshift bias in any direction).
  
  4
  
  Thank you! At that scale the simpler answers just don’t feel sufficient
  
  2
- At that speed, relative to most nearby large object
  
  2
  
  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.
  
  2
- Relative to their point of origin.
  
  2
I can't even fathom something like this. There's so much energy involved. Can you imagine how bright matter around the black hole is? And there's people who believe reaching relativistic speeds will be possible soon...

1
- Black holes aren’t luminous except when matter is falling into the event horizon. So unless one of these was tearing through a nebula we probably wouldn’t see it.
  
  1

You've viewed 13 comments.