if there is even just one blackhole, wouldnt it just keep on consuming matter and eventually consume everything?
In: Planetary Science
A newly formed black hole has (almost) the same mass as the star it formed from. The thing that makes black holes powerful is that they’re so small.
If you try to get really close to a regular star’s center of mass, you hit the surface. When it becomes a black hole that star’s surface is gone so you can get much MUCH closer to its center of mass. Since the strength of gravity goes down by distance squared (one fourth as strong twice as far away) the black hole ”sucks” much harder than a star with the same mass once you get close enough.
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