Well. Aren't all black holes "rogue"? I don't understand the difference between a black hole and a rogue black hole.
this post was submitted on 11 Apr 2025
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Many black holes remain in the gravitational influence of the galaxy or star system where they originated. Rogue black holes do not, so it is often harder to observe them
We often find a black hole because other things we can see are orbiting a patch of nothing. Based on the orbits we can calculate how heavy the thing they should be orbiting is.
A black hole that doesn't have anything visibly in orbit around it would be much harder to find, since it'd just appear to be a patch of nothing with nothing around it--which describes most of outer space to begin with. Though we could still spot one based on how it bends the light coming from things roughly behind it.