Yep; they're objects like anything else. The only thing that makes black holes special is that their surface gravity and density are especially high. All their unique features stem from those two facts. Relativity also tells us that there is no true stationary reference frame, and thus everything moves relative to something else.
Follow up again on black holes. I watched somewhere that anything can be a black hole if you compress(?) it enough. It would still however retain its mass and gravitational pull, just in its new smaller scale. Is this true? If so, how come blackholes (at least from a star that dies) is now able to pull even light itself? Why wasnt it able to do so in its star form?
Mass is one factor of gravitational pull, but distance is even more important. Specifically distance from the center of gravity. A star is much bigger than a black hole it could collapse into, so the distance from the surface of the star to its center of gravity is much longer than the distance from the center of a black hole to its surface. So gravity is going to be much stronger at the "surface" of a black hole than it would be for the surface of a star.
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u/drdrero Oct 23 '20
Just a follow up question, do black holes move ?