Black Holes Are Not Cosmic Vacuum Cleaners

A common misconception is that black holes actively 'suck' in everything around them. In reality, a black hole's gravitational pull is only extreme very close to it, specifically within its event horizon. If our Sun were replaced by a black hole of the same mass, Earth and the other planets would continue to orbit it just as they do now, unaffected, because the gravitational force at that distance would be the same. Objects only fall into a black hole if they get too close and cross the point of no return (the event horizon).