Are galaxy orbiting around something?

[13lackJesus]

I know some galaxy orbite around other galaxy but are they orbiting only around each other?

 

[13lackJesus]

well i just found this thread.
https://www.physicsforums.com/showthread.php?t=662727
i will search next time before posting a new thread...

 

[Chronos]

Yes, what else would they orbit?

 

[TumblingDice]

Galaxies can be seen orbiting each other 'too quickly' to be explained by the matter the systems contain, another strong statement for the existence of dark matter. Hydrogen and helium gas has been detected/imaged with radio (X-ray?) telescopes in the center of the orbits at density and temperature being explained by the gravitation of the dark matter.

Want to cite source - believe it was during UC Irvine video lecture on Expanding Universe - James Bullock
www.youtube.com/watch?v=bAHBGtCX3cU

 

[pmacias]

Yes, galaxies are indeed orbiting around something. In fact, they are orbiting around a center of mass within their respective galaxy clusters. This center of mass is determined by the distribution of mass within the cluster, including the galaxies themselves, dark matter, and other cosmic structures. Within a galaxy cluster, individual galaxies may also orbit around each other, but they are primarily influenced by the overall gravitational pull of the cluster's center of mass. Additionally, some galaxies may also orbit around supermassive black holes at the center of their own galaxy. However, the majority of galactic motion is determined by the gravitational forces within their respective clusters.