What happens when a private company makes an error and causes a catastrophe, like an asteroid crashing on a city? The only precedent of that scale I can think o

What happens when a private company makes an error and causes a catastrophe, like an asteroid crashing on a city? The only precedent of that scale I can think of are Nuclear plants accidents. Usually the cost is shared by everyone, even by the people who opposed that particular technology exactly due to these risks. When a private company takes risks that could negatively impact non customers economically, I feel some of this risk should be reflected in the price, or in taxes, in order to create an accident fund. In many cases this would make the adventure non competitive.