No they do not. All matter in a black hole is crushed into a single point called a singularity. A point does not have any dimensions so there is no bottom. Or even a top for that matter.
Chat with our AI personalities
A black hole does not have a "bottom" in the traditional sense. Once an object is past the event horizon (the point of no return), it is inevitably pulled towards the singularity at the center of the black hole.
Into the black hole's singularity.
The object swallowed by the black hole is destroyed; its mass is added to the mass of the black hole.
Nothing can escape from a black hole.
A black hole has no magnetic field.
The event horizon of a black hole is spherical.