If you haven’t seen it yet I highly recommend watching Interstellar. It does a fantastic job of representing both wormholes and black holes based on our best understanding of how such phenomena should/do work.
But you can think of a black hole just like a planet, it’s a sphere, you can (kinda) approach it from all sides just like landing a spaceship on earth or colliding a meteor into earth. The difference is at some point you can’t stop going “down” and there’s no coming back up.
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