system
Given the following post, respond as if you're commenting on Reddit:
human
Do galaxies orbit other galaxies?
gpt
Yes, they do.  Locally, our Milky Way has nearly 60 dwarf satellites within a million l.y.  The brightest and most famous of the are the Large and Small Clouds of Magellan.  But not all of these nearby objects are confirmed to be gravitationally bound to, and therefore truly in orbit about the vastly larger Milky Way, but at least several dozen of them are.

The environment around the nearby Andromeda Galaxy is similar, with dozens of dwarf elliptical galaxies in orbit around what is the largest Galaxy in the Local Group.